Question

write the number of neutrons in 37
CL
17
options (1)17 (2)37 (3)54 (4)20

Answer 1

it has 17 protons +20 neutrons so answer is 20 neutrons

Answer 2

Option D is correct (20 )

In 37Cl17, 37 is the mass number & 17 is the atomic number.

Chlorine atoms contain 17 protons so the atomic number of Chlorine atom is 17.

Atomic number = number of protons

Mass number = number of protons + number of neutrons

37 = 17+ number of neutrons

Number of neutrons= 37-17= 20

Hence , number of neutrons in 37Cl17 = 20

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