The mass number of an element is 63. It contains 29 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element?
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In a neutral atom, number of electrons are equal to the number of proton.
No. of protons = No. of electrons = 29
Mass number = No. of protons + No. of neutrons
So, No. of neutrons (N) = Mass number - No. of protons
= 63 - 29
Number of neutrons (N) = 34
Electronic configuration : Electronic configuration is written on the basis of total number of electrons. So, the electronic configuration of the element is 2,8,18,1
No. of protons = No. of electrons = 29
Mass number = No. of protons + No. of neutrons
So, No. of neutrons (N) = Mass number - No. of protons
= 63 - 29
Number of neutrons (N) = 34
Electronic configuration : Electronic configuration is written on the basis of total number of electrons. So, the electronic configuration of the element is 2,8,18,1
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