Question

calculate the number of electron, proton and neutron in 40k+

Answer 1

Given Ion is K+
Atomic number of  K+ ion is 19
So number of Protons= 19
As one electron is removed , so number of electrons=18
Mass number= Number of protons +number of neutrons
40=19+number of neutrons
number of neutrons=40-19=21

So 40K+ has 18 electrons, 19 protons and 21 neutrons

Answer 2

Answer:

The answer is on the image.

Explanation:

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