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Chapter 1 Review
Atoms and Molecules
Question | Answer |
---|---|
Unchanged particle in the nucleus of an atom is | neutron |
Positively Charged particle in the nucleus | proton |
The number of protons in the nucleus | atomic number |
Region surrounding the atom's nucleus where electrons are found | electron cloud |
Where is the most mass in an atom found | nucleus |
The nucleus contains particles called | neutrons and protons |
A negatively charged particle in an atom | electron |
The electron cloud holds how many _______ in each ring | 8 electrons |
The nucleus has a ________ charge | positive |
The modern model of an atom is called the (electron-cloud/ nucleus-orbit) model | electron-cloud |
Electrons that are closer to the nucleus have ______energy than others farther away | less |