Question

Chemistry.....??????????????????

Answer 1

Atomic Number = 25
Mass number = 52

Number of electron = number of proton = atomic number   (in a Neutral atom)

Since two electrons are ejected from the neutral atom so number of neutrons and protons will remain same. only number of electron will differ from 2.

First, number of neutron = Mass number - number of proton
                                   = 52 - 25
                                   = 27

Number of protons = atomic number = 25

Number of electron = 25 - 2
                             = 23

Hence, option D) is correct.

Answer 2

Answer:

D) 23

Explanation: