The mass number is the sum of the number of protons and the number of neutrons in an atom.

State whether the given statement is true or false.

True

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False

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Solution

The correct option is A True
It is defined as the sum of protons and neutrons. The mass number is almost equal to the atomic mass of a particular atom. Therefore it can be written as

Mass no. of an atom = No. of protons + No. of neutrons.

Hence, the given statement is $t r u e$

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Similar questions

An atom containing 11 protons and 12 neutrons has mass number equal to 23. . True or False

State whether the given statement is true or false :

Consider the following statements:

1. The number of protons in the nucleus of an atom of a given element is called the atomic number of that element.

2. Mass number of an atom is defined as the sum of number of protons and neutrons present in the nucleus of an atom.

3. Atoms of an element that have the same atomic number (Z) but different mass number (A) are called isotopes.

Which of the above statements is incorrectly stated?

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