Chemistry, asked by documentg7, 3 months ago

2 neutral elements X and Y with electrons 19 & 20, and neutrons 21 & 20 respectively are
Isotope
Isotone
Isobar
Isoelectronic

Answers

Answered by rajeshwari46

1

Answer.

I Think Answer is Isobar

Answered by sumitpal123005

0

Answer:

I thing isotope

Example:because the I thing isoelectronic

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