what atom has 2 protons and 4 neutons
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Answer:
Helium atom has 2 protons and 4 neutons
Explanation:
Its atomic number is 2, so it has two protons in its nucleus. Its nucleus also contains two neutrons. Since 2 + 2 = 4, we know that the mass number of the helium atom is 4
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Answer:
if the electronic configuration is 2,4 then it is 6 and the atom s carbon
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