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An isobar of .(20)Ca^(40) is...

An isobar of `._(20)Ca^(40)` is

A

`._(18)Ar^(40)`

B

`._(20)Ca^(38)`

C

`._(20)Ca^(42)`

D

`._(18)Ar^(38)`

Text Solution

Verified by Experts

The correct Answer is:
a
N//a
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