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1. 1 Chemical Inter

Test your knowledge

QuestionAnswer
The nucleus of an atom contains . . . protons and neutrons
The atomic number of an element tells you the atom's number of protons
The most common element in the universe is hydrogen
Electrons... move around outside the nucleus
One kind of uranium atom has 92 protons and 143 neutrons. Another atom of uranium has 92 protons and 146 neutrons. The two uranium atoms are different... isotopes
Mg2+ is a magnesium ion that has two fewer electrons than a neutral magnesium
Created by: mrstlang
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