Chemistry, asked by pravdeep7742, 10 months ago

Two elements X and Y have same atomic mass but their atomic number have 20 and 21 respectively X and Y are

Answers

Answered by bandanapathak23

Answer:

isobars

Explanation:

isobars are atoms of different chemical elements that have the same number of nucleons. They differ in atomic no. but have the same mass no. Like Ar, K etc

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