Question

Composition of the nuclei of two atomic species ‘X’ and ‘Y’ are given below. X        Y   

Protons 8 8

Neutrons 8 10

(a) Write the mass number of X and Y respectively.

(b) Write the electronic configuration of the element ‘X’.

(c) Is there any similarity between X and Y? How are they related to each other?​

Answer 1

Explanation:

a) mass of x is 8 + 8 = 16 u ( proton + neutron = atomic mass)

mass of y is 8 + 10 = 18 u

b) X = 2, 6

c) yes they are isotopes....... same atomic number but different mass number....

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