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Chapter 1 Review
Atoms and Molecules
Question | Answer |
---|---|
Which particle in an atom has a positive charge? | The Proton |
Which particle in an atom has no charge? | The Neutron |
Which particle in an atom has a negative charge? | The Electron |
Where is most of the mass of an atom found? | In the Nucleus |
The _________is the number of protons in the nucleus of an atom of an element. | Atomic Number |
You can identify an element if you know its atomic number or _______. | Proton Number |
In the periodic table, the atomic number of an element is the _________ above its symbol. | Number of Protons |
What do atoms become if any electrons are gained or lost? | Ions |