Multiply the atomic number of hydrogen by the number of electrons in mercury, which has an atomic number of 80. What is the result?

1 Answer
Meave60
Dec 18, 2015

The answer is 80.

Explanation:

The atomic number of an element is the number of protons in the nuclei of its atoms. A neutral atom has equal numbers of protons and neutrons.

The atomic number of hydrogen is #1#, which can be found on the periodic table.

The atomic number of mercury is 80. A neutral atom of mercury has 80 protons and 80 electrons.

The atomic number of H times the number of electrons in a neutral Hg atom is #1xx80=80#.

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