chriswhelan chriswhelan

15-09-2021
Biology

contestada

What is the atomic mass of an element with 8 protons and 9 neutrons?

What is the atomic mass of an element with 20 protons and 21 neutrons?

How many neutrons are found in an atom of Fluorine?

Respuesta :

briannalebeaux briannalebeaux

15-09-2021

Answer:

Calcium and 9

Explanation:

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