Mercury has an atomic number of 80. How many electrons are there in an isotope of mercury-204?

1 Answer
David Drayer
Mar 30, 2017

80 electrons.

Explanation:

The number of electrons equals the number of protons in a neutral
atom. The number of neutrons has no effect on the number of electrons.

#Hg_80^204# has 80 protons 80 electrons and 124 neutrons.

The mass of 204 is made up of the protons and neutrons.

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