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Arrange the following statements in a se...

Arrange the following statements in a sequence which involves the calculation of the atomic number and mass number for an atom of an element with 15 electrons and 16 neutrons.
(1) A = Number of protons + Number of neutrons
A = Z + Number of neutrons
A = 15 + 16 = 31
(2) Number of protons and number of electrons are equal in a neutral atom. Hence, the atomic number Z is equal to 15.
(3) Mass number is equal to the total number of protons and neutrons.
(4) Atomic number is 15 and mass number is 31.

A

2 4 3 1

B

2 3 1 4

C

3 2 1 4

D

3 2 4 1

Text Solution

Verified by Experts

The correct Answer is:
B
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