Answer:
You can find in the given attachemnet
Hey it isnt letting me submit my answer to your question on the Japanese chart, so imma just submit it here
Answer:
the sum of the numbers of protons and neutrons present in the nucleus of an atom.
N2 stands for nitrogen.
this compound also includes the exact mass.
If you have any other questions please contact me here on Brainly.com and i will be happy to help.
please note- I didn't quite understand the question fully.
-Diane
I have done this question before and even though you didn’t provide the options. I think the correct option is elements