The number of electrons in an ion with 20 protons and an ionic charge of 2- is

We have that for the Question "The number of electrons in an ion with 20 protons and an ionic charge of 2- is" it can be said that

From the question we are told

The number of electrons in an ion with 20 protons and an ionic charge of 2- is

Where

Generally the equation for the  number of electrons   is mathematically given as

N_e=18

Therefore

number of electrons  is

N_e=18

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answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

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