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Home » The number of protons in one atom of an element X is 8. What will be the number of electrons in its ion X2-?
The number of protons in one atom of an element X is 8. What will be the number of electrons in its ion X2-?
CBSE | Chemistry | Class 10 | Exercise 1 | Lakhmir Singh | Metals and Non Metals
The number of protons in one atom of an element X is 8. What will be the number of electrons in its ion X2-?

(a) 8

(b) 9

(c) 10

(d) 11

Solution:

Option (c) is the answer.

Because the number of electrons equals the number of protons, X2- will contain 8+2 electrons = 10 electrons.

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