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5 Cards in this Set
- Front
- Back
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What is an atoms nucleus surrounded by? |
electrons |
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name some properties of the nucleus of an atom |
1. in the middle of an atom 2. contains protons and neutrons 3. protons are positively charged 4. neutrons have no charge (neutral) 5. has an overall positive charge |
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facts about electrons |
1. move around the nucleus 2. negatively charged 3. tiny but cover a lot of space 4. occupy shells around nucleus |
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do atoms have a charge? |
no they are neutral |
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what is an element |
a substance which only contains one type of atom |
