Aundrea885 Aundrea885

02-06-2015
Chemistry

Answered

What is the total number of electrons in an atom of potassium?
(1) 18 (3) 20
(2) 19 (4) 39

Answer :

SoapyMcTavish SoapyMcTavish

02-06-2015

If you check the periodic table, the Potassium K have 19 protons.And, number of protons = number of electrons, because the atom is electrically neutral. Which means that Potassium K have 19 electrons HOPE THIS HELPS :D

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itemderby itemderby

03-06-2019

Answer: Option (2) is the correct answer.

Explanation:

Number of protons present in an atom represent the atomic number of atom. Also it is known that for a neutral atom number of protons equal the number of electrons.

Potassium is a group 1 element which is also known as alkali metal group. Atomic number of potassium is 19 and its electronic configuration is 2, 8, 8, 1.

This means that valency of potassium is 1.

Hence, we can conclude that the total number of electrons in an atom of potassium are 19.

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