Term
Atoms have a small _______surrounded by _________ |
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Definition
Atoms have a small nucleus surrounded by electrons |
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Term
The Nucleus
It's in the ______ of the atom
It contains _______ and ________
Protons are __________ charged
Neutrons have ________ charge
The nucleus has a ________ charge
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Definition
It's in the middle of the atom
It contains protons and neutrons
Protons are positively charged
Neutrons have no charge
The nucleus has a positive charge
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Term
The Electrons
Move ______ the _______
They're __________ charged
They're ____, but they cover a ___ __ _____
They occupy ______ around the nucleus
These shells explain the _____ __ _________ |
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Definition
Move around the nucleus
They're negatively charged
They're tiny, but they cover a lot of space
They occupy shells around the nucleus
These shells explain the whole of chemistry |
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Term
What is the charge of an atom |
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Definition
No charge - They are neutral |
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Term
If there were 17 protons in an atom, how many electrons would there be? |
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Definition
17, because the number of protons always equals the number of electrons. |
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Term
What happens if some electrons are added |
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Definition
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