Question

An atom has 20 electrons, from which of the following shells would it lose electrons to form ions? A.K B.L C.M D.N

Answer 1

Answer:

D)N

Explanation:

This atom is calcium whose atomic number is 20. It's electronic configuration means distribution of electrons is

electronic configuration = 2, 8,8,2

k, l, m,n

therefore it looses electrons from outermost shell which is N .

Answer 2

Answer:

An atom has 20 electrons, from N shell would it lose electrons to form ions.

Explanation:

K shell can have maximum of 2 electrons. L shell has maximum of 8 electrons and M shell can also have 8 electrons in it. N shell can have maximum 18 electrons in it.

The atom having 20 electrons is calcium.

The K, L, M, and N shells of calcium with an atomic number of 20 will each contain 2, 8, 8, 2 electrons.

2, 8, or 8 electrons can fit in the K, L, and M shells, respectively.

The final two electrons will move into the N shell.

Hence, from N shells the atom lose it's electrons as it has incomplete number of electron.

To know more about atomic shells, click on the link given below,

https://brainly.in/question/279400

https://brainly.in/question/21068800

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