sonya0930
sonya0930
13-10-2016
Mathematics
contestada
Find number of neutrons for He
Respuesta :
ankem
ankem
13-10-2016
The answer is 2 neutrons for He
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jclouser27
jclouser27
13-10-2016
1)Get a periodic table of elements.
2)Find your element on the periodic table.
3)Locate the element's atomic number.
4)Determine the number of electrons.
5)Look for the atomic mass of the elements.
6)Subtract the atomic number from the atomic mass.
Answer Link
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