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Science: Chemistry Facts

A spoonful of table salt (NaCl) is composed of two ____. anions
Na and Cl are the ____ for sodium and chlorine. elements
The isotopes of an element have different numbers of ____. isotopes
When neutral atoms gain electrons, ____ are formed. molecules
Electrons tend to be located in regions called ____ (s, p, d, f). neutrons
C-12 and C-14 are ____ of carbon atoms. Each has six protons. orbitals
At STP, equal volumes of gases have an equal number of ____. protons
All atoms of an element have the same number of ____. symbols