Establish the relationship between atomic number, mass number, isotopes, isobars, and valency of an atom.

 Atomic number — Gives the number of protons (Z)
Mass number — Gives the number of protons and neutrons (A)
Isotopes — When atoms of the same element have the same number of protons (Z) but the different number of neutrons (s) such atoms are called isotopes.
Isobars — When atoms of the different elements have the same mass number (A) but the different atomic number (Z) such atoms are called isobars.
Valency — It is the combining capacity of an atom.

(Protons = Z)
Z = 6Z = 6
(Protons+Neutrons =A)A = 14A = 12
Combining capacity Valency=4

Valency = 4.

 Hence, both are isotopes of C.

Isobars are elements having the same mass number but different atomic number

4020Ca   4018Ar.


Simply Easy Learning

Updated on: 14-Mar-2023


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