Question

12. Find the number of
electrons in Cl-.
2 points
O a) 35
O b) 17
O c) 12
O d) 18​

Answer 1

Answer:

b) 18

Explanation:

As atomic number of Cl is 17, it have 17 protons.

No. of protons = No. of electrons, so no. of electrons is also 17.

Cl^- means additional 1 electron.

Therefore no. of electrons in Cl^- will be 17 + 1 = 18 electrons

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