Physics AQA A 1.1.2 Stable and unstable nuclei
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- Created by: officiallarkai
- Created on: 12-10-14 13:51
What is the name of the force that is said to hold the nucleus of a stable isotope together?
the strong nuclear force
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What does the strong nuclear force do?
It overcomes the electrostatic force of repulsion between the protons in the nucleus and (except in unstable nuclei) keeps the protons and neutrons together.
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What is the range of the strong nuclear force?
no more than 3-4 femtometres, which around the same as the diameter of a small nucleus.
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Does the stron nuclear force only have an effect between a proton and a neutron?
No. The strong nuclear force has the same effect between two protons as it does between two neutrons or a proton and neutron.
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At separations (distances between particles) of 0.5 femtometres downwards, how does the strong nuclear force change?
From 3-4 femtometres down to 0.5 femtometres it acts as an attractive force. At separations below 0.5 femtometres it acts as a repulsive force to prevent protons and neutrons being pushed into each other.
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutro
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus.
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. The
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton.
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and ann
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same bu
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
an antiparticle with no charge
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
An antiparticle with no charge.
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
An antiparticle with no charge.
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What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus.
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
An antiparticle with no charge.
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What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
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When does an unstable nucleus emit gamma radiation?
When the nucleus has to
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
An antiparticle with no charge.
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What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
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When does an unstable nucleus emit gamma radiation?
When the nucleus has too
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
An antiparticle with no charge.
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What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
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When does an unstable nucleus emit gamma radiation?
Following awhen a nucleus has too much energy
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
An antiparticle with no charge.
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What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
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When does an unstable nucleus emit gamma radiation?
Following an alpha or beta emmision, when a nucleus has too much energy.
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
The antiparticle of a newith no charge.
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What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
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When does an unstable nucleus emit gamma radiation?
Following an alpha or beta emmision, when a nucleus has too much energy.
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
The antiparticle of a neutrino which has no charge.
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What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
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When does an unstable nucleus emit gamma radiation?
Following an alpha or beta emmision, when a nucleus has too much energy.
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What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutrons and 2 electrons is emitted from the element's nucleus. Its nucleon number decreases by 2 and its atomic number decreases by 2.
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What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton and an antineutrino is also emitted. The nucleon number stays the same but the atomic number increased by 1.
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What is an antineutrino?
The antiparticle of a neutrino which has no charge.
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What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
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When does an unstable nucleus emit gamma radiation?
Following an alpha or beta emmision, when a nucleus has too much energy.
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Other cards in this set
Card 2
Front
What does the strong nuclear force do?
Back
It overcomes the electrostatic force of repulsion between the protons in the nucleus and (except in unstable nuclei) keeps the protons and neutrons together.
Card 3
Front
What is the range of the strong nuclear force?
Back
Card 4
Front
Does the stron nuclear force only have an effect between a proton and a neutron?
Back
Card 5
Front
At separations (distances between particles) of 0.5 femtometres downwards, how does the strong nuclear force change?
Back
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