Explanation:
Equiv means equivalent ...
Answer:
By November 2016, the International Union of Pure and Applied Chemistry had recognized a total of 118 elements. The first 94 occur naturally on Earth, and the remaining 24 are synthetic elements produced in nuclear reactions.
Explanation:
Location = nucleus ,
and you can see the total charge on the number that written below the substance, which would be 28+
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That number has 6 significant numbers. It's precision would be 602.
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