sonya0930 sonya0930

13-10-2016
Mathematics

contestada

Find number of neutrons for He

Respuesta :

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.

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