Chemistry-C1:Basic Atomic Structure and Periodic Table

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  • Created by: tonisha_
  • Created on: 06-11-21 12:26
What does the nucleus contain?
protons and neutrons
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What charge does a proton have?
positive
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What charge does a neutron have?
no charge
neutral
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What is found on the shell of an atom?
electrons
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What charge does an electron have?
negative
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What is a compound?
2 or more elements chemically bonded together
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What is an element?
a substance made up of one type of atom
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When a metal and non-metal bond together?
what is formed?
an ionic bond
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The metal ion will have a what charge?
a positive charge
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The non-metal ion will have a what charge?
a negative charge
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This is because the electrons are what?
transferred
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When two non-metals react what bond is formed?
covalent bond
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What is covalent bonding?
a shared pair of electrons
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What are the group 1 elements also known as?
alkali metals
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What elements are in this group?
(6)
lithium
sodium
potassium
rubidium
caesium
francium
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What are the chemical symbols for these?
Li
Na
K
Rb
Cs
Fr
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How many electrons do these elements have on their outer shell?
1 electron
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Are they reactive?
yes very
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What is the pattern of reactivity?
As you go down the group,
the reactivity increases
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This is because the outer electron is more easily what?
lost
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as the attraction between the_______ and _______ decreases?
nucleus and electrons
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because the electron is ______ _____
from the nucleus the further down the group you go?
further away
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They also have low what?
(2)
melting and boiling points
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What are group 7 elements also known as?
the halogens
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What elements are found in group 7?
Fluorine
Chlorine
Bromine
Iodine
Astatine
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What are the chemical symbols for these?
F
Cl
Br
I
As
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What is the reactivity pattern of these elements?
as you go down the group, the reactivity decreases
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This means that it is harder for them to what?
gain an extra electron
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Because the outer shell is what?
further away from the nucleus
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They also have higher what?
(2)
melting and boiling points
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When halogens form an ionic bond, they produce what ion?
a negative 1- ion
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What are these called?
halides
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What are the group 0 elements also known as?
the noble gases
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What elements are in group 0?
(6)
Helium
Neon
Argon
Krypton
Xenon
Radon
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What are the chemical symbols for these?
He
Ne
Ar
Kr
Xe
Rn
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How many electrons do they have from their outer shell?
8
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This gives them a what?
a full outer shell
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What is their reactivity?
they are not reactive
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What happens to the boiling points as you go down the group?
they increase
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Why?
The number of electrons what?
increase in each atom
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This leads to the intermolecular forces what?
increasing
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What is a Diatomic molecule?
means two of the element
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What does ozone mean?
3 of same element
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What are the three subatomic particles?
protons
neutrons
electrons
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What two numbers are shown on the periodic table of an element?
atomic mass

atomic number
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Which one tells us the protons?
the smaller number
atomic number
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Protons and electrons are what?
equal
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So the atomic number tells us what?
number of protons and electrons
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How do we calculate the neutrons?
neutrons=atomic mass-atomic number
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What is an isotope?
it is atoms with the same number of protons and electrons, but a different amount of neutrons
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This means the have the same what?
reaction
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But a different?
mass
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What is the formula for Calculating the relative atomic mass?
average=(mass1 x abundance1)+(mass2 x abundance2)
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100
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Card 4

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Card 5

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