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disa [49]
3 years ago
10

I guess we're not allowed to post more then one question... so here is one of them for my previous... if you answer them all it'

ll be like 100 points...
For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope:



You have a Helium Isotope with 2 neutrons. What is the mass number?

2
4
4.0026
6
Physics
1 answer:
AnnZ [28]3 years ago
5 0
I'm too sure about this question but I think the answer to this is 4.0026
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