The mass number of an element is 63. It contains 29 electrons. What is

1.	The mass number of an element is 63. It contains 29 electrons. What is the number of protons and neutrons in its nucleus ? Write the electronic configuration of the element ?
Answer» 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

The mass number of an element is 63. It contains 29 electrons. What is the number of protons and neutrons in its nucleus ? Write the electronic configuration of the element ?

Answer»

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

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The mass number of an element is 63. It contains 29 electrons. What is the number of protons and neutrons in its nucleus ? Write the electronic configuration of the element ?

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