click below
click below
Normal Size Small Size show me how
Atomic Structure
Study for a test
Question | Answer |
---|---|
smallest piece of an element that keeps its chemical properties compound - substance that can be broken into elements by chemical reactions | atom |
particle orbiting the nucleus of an atom with a negative charge (mass = 9.10 x 10-28 grams) | electron |
substance that cannot be broken down by chemical reactions | element |
electrically charged atom (i.e., excess positive or negative charge) | ion |
smallest piece of a compound that keeps its chemical properties (made of two or more atoms) | molecule |
particle in the nucleus of an atom with no charge (mass = 1.675 x 10-24 grams) | neutron |
dense, central core of an atom (made of protons and neutrons) | nucleus |
particle in the nucleus of an atom with a positive charge (mass = 1.673 x 10-24 grams) | protons |