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chapter 1.1 review
atoms and matter
| Question | Answer |
|---|---|
| Protons and neutrons are in the ______ of the atom. | nucleus |
| The atomic number is the number of ______ in the nucleus of an atom of an element. | proton |
| A _______ ion has more protons than electrons. | postive |
| Electrons that are close to the nucleus have __________ than electrons that are farther from the nucleus | less energy |
| An electron is a _______________ particle located outside the nucleus. | negatively charged |
| An ion has a charge because it has gained or lost __________. | electrons |
| The nucleus has a positive charge and the __________ of the atom. | most mass |
| Adding a(n) __________ to a neutral atom produces a new element. | proton |
| Which particle in an atom has a positive charge? | proton |
| Which particle in an atom has no charge? | Neutron |
| Where is most of the mass of an atom found? | nucleus |
| What particles in an atom has a negative charge? | electron |
| The _________ is the number of protons in the nucleus of an atom of an element. | atomic number |
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