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Chapter 1 review
atoms and molecules
Question | Answer |
---|---|
Atoms that have gained or lost electrons are called what? | ions |
Atoms have a central region called what? | nucleus |
The nucleus contains particles called what? | neutrons and protons |
The atom has a central region surrounding the central area called what? | the electron cloud |
The proton has the same number of what in the element? | atomic number |