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CBSE Class 9 Science Question 31 of 34

Structure of the Atom — Question 1

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Question 1

If the number of electrons in an atom is 8 and the number of protons is also 8, then

(i) What is the atomic number of the atom? and

(ii) What is the charge on the atom?

Answer

Given,

Number of electrons = 8

Number of protons = 8

(i) As the atomic number of an atom is the number of electrons in that atom; hence, atomic number = 8.

(ii) As the number of electrons and protons are equal in number. Hence, both the charges (positive and negative) neutralize each other and the atom does not possess any charge.