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ATOMIC STRUCTURE

Horizontales
These are substances which are not chemically bonded together.
This number refers to the number of protons plus neutrons in an atom.
This sub-atomic particle has a positive charge and a mass of 1.
This is where electrons are found (two words).
Verticales
This sub-atomic particle has a negative charge and virtually no mass.
This sub-atomic particle has a neutral charge and a mass of 1.
A substance formed from two or more different elements chemically bonded together.
These are different forms of an element with the same number of protons but a different number of neutrons.
This is a word used for lots of the same atom.