# Q. 2.     Write the electronic configuration of any one pair of isotopes and isobars.

P Pankaj Sanodiya

Isotope:

Isotopes are the atoms with the same number of proton and different atomic mass. The difference in atomic mass arises due to the different number of neutrons present in the atom.

Some Examples of Isotopes are :

1.$^{12}C_6$  and $^{14}C_6$

2.$^{35}Cl_{17}$  and $^{37}Cl_{17}$.

Isobar:

Isobars are the atom with the same atomic mass and different atomic number.

Some example of Isobars are :

1. $^{40}Ca_{20}$ and $^{40}Ar_{18}$

2.$^{22}Ne_{10}$ and $^{22}Na_{11}$

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