Physics AQA A 1.1.2 Stable and unstable nuclei

HideShow resource information
What is the name of the force that is said to hold the nucleus of a stable isotope together?
the strong nuclear force
1 of 67
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.
2 of 67
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.
3 of 67
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.
4 of 67
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.
5 of 67
What happens when an unstable nuclei emits alpha radiation?
An alpha particle comprised of 2 neutro
6 of 67
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.
7 of 67
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.
8 of 67
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.
9 of 67
What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of
10 of 67
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.
11 of 67
What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. The
12 of 67
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.
13 of 67
What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron
14 of 67
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.
15 of 67
What happens when an unstable nuclei emits beta radiation?
Beta of radiation consists of fast moving electrons. A neutron turns into a proton.
16 of 67
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.
17 of 67
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
18 of 67
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.
19 of 67
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
20 of 67
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.
21 of 67
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
22 of 67
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.
23 of 67
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.
24 of 67
What is an antineutrino?
an antiparticle with no charge
25 of 67
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.
26 of 67
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.
27 of 67
What is an antineutrino?
An antiparticle with no charge.
28 of 67
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.
29 of 67
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.
30 of 67
What is an antineutrino?
An antiparticle with no charge.
31 of 67
What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus.
32 of 67
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.
33 of 67
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.
34 of 67
What is an antineutrino?
An antiparticle with no charge.
35 of 67
What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
36 of 67
When does an unstable nucleus emit gamma radiation?
When the nucleus has to
37 of 67
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.
38 of 67
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.
39 of 67
What is an antineutrino?
An antiparticle with no charge.
40 of 67
What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
41 of 67
When does an unstable nucleus emit gamma radiation?
When the nucleus has too
42 of 67
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.
43 of 67
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.
44 of 67
What is an antineutrino?
An antiparticle with no charge.
45 of 67
What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
46 of 67
When does an unstable nucleus emit gamma radiation?
Following awhen a nucleus has too much energy
47 of 67
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.
48 of 67
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.
49 of 67
What is an antineutrino?
An antiparticle with no charge.
50 of 67
What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
51 of 67
When does an unstable nucleus emit gamma radiation?
Following an alpha or beta emmision, when a nucleus has too much energy.
52 of 67
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.
53 of 67
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.
54 of 67
What is an antineutrino?
The antiparticle of a newith no charge.
55 of 67
What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
56 of 67
When does an unstable nucleus emit gamma radiation?
Following an alpha or beta emmision, when a nucleus has too much energy.
57 of 67
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.
58 of 67
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.
59 of 67
What is an antineutrino?
The antiparticle of a neutrino which has no charge.
60 of 67
What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
61 of 67
When does an unstable nucleus emit gamma radiation?
Following an alpha or beta emmision, when a nucleus has too much energy.
62 of 67
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.
63 of 67
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.
64 of 67
What is an antineutrino?
The antiparticle of a neutrino which has no charge.
65 of 67
What is gamma radiation?
Electromaganetic radiation emitted by an unstable nucleus. It has no mass and no charge.
66 of 67
When does an unstable nucleus emit gamma radiation?
Following an alpha or beta emmision, when a nucleus has too much energy.
67 of 67

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

Preview of the front of card 3

Card 4

Front

Does the stron nuclear force only have an effect between a proton and a neutron?

Back

Preview of the front of card 4

Card 5

Front

At separations (distances between particles) of 0.5 femtometres downwards, how does the strong nuclear force change?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Particle physics resources »