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P SCI QUIZ 4- INTRO TO ATOMS, IONS, AND MOLECULES

Across
Positively charged ion.
Made up of two or more different elements that are chemically combined.
The number of protons plus the number of neutrons in an atom.
The two word phrase for the three tiny particles that make up an atom.
Changing the number of this particle can create an ion.
Different versions of the same element that only differ in their number of neutrons.
Negatively charged ion.
Down
The positively charged region in the center of the atom.
The mass of an atom.
The number of protons in an atom.
Any two or more atoms which are chemically combined.
Subatomic particle with no charge.
Changing the number of this particle created a different element.