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Chemistry, 13.11.2019 08:31 oopfloop2

According to the periodic table of elements, calcium has:

a. 20 protons and 20 electrons
b. 40.08 protons
c. 20 protons and 20.08 electrons
d. 20 protons and zero electrons

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According to the periodic table of elements, calcium has:

a. 20 protons and 20 electron...

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