Question

A neutral atom has 2 electrons in its K shell, 8 electrons in L shell, and 2 electrons in M shell. Find the atomic number of the element, write the symbol of the ion that will he obtained if the electrons in the M shell are removed from the atom?​

Answer 1

Explanation:

the atomic number of the element is 12 the symbol for it is magnesium (mg)

Answer 2

Explanation:

The number of electrons in the shells is given as 2 in K shell, 8 in L shell and 5 in the M shell. Thus, the atom has in total of 2+8+5 = 15 electrons. Hence, the atom is phosphorus

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