Question

What is the isotopic distribution of gallium metal?

Answer 1

Answer:

Well what are the common gallium isotopes?

Explanation:

This site reports two common gallium isotopes, 69Ga, with 60.1% abundance, and 71Ga, with 39.9% abundance.

Now for gallium, Z=31, i.e. in each and every gallium nucleus there are 31 massive, positively charged particles; this is what defines the element as gallium. And so in 69Ga, there must be 69−31=38⋅neutrons....and in 71Ga, there must be 71−31=40⋅neutrons.... The protons and the neutrons constitute most of the element's mass...

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