an atom x has mass number 31 and electroni configuration 2,8,5 . how many protons and neutrons are present in the atom
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an atom x has mass number 31 and electroni configuration 2,8,5 . how many protons and neutrons are present in the atom
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Answer:
here's answer
Explanation:
Here, atomic number =15=electrons=protons
Mass Number = 31
Number of neutrons + number of protons= Atomic mass number.
∴ Number of neutrons =31−number of protons
=31−15
=16