What is the mass number of an atom which contains 28 protons, 28 electrons, and 34 neutrons?

A)
28
B)
56
C)
62
D)
90

Correct Answer :   62

Published On : May 28, 2021
Recent Updates in Atomic Structure - General Knowledge Questions
Q .
Who has been selected as the external auditor of the International Atomic Energy Agency (IAEA) fortheperiod between 2022 to 2027?
A)
R. K. Mathur
B)
Manoj Sinha
C)
G C Murmu
D)
Rajiv Mehrishi

Correct Answer :   G C Murmu

The Comptroller and Auditor General (CAG) of India, G C Murmu has been selected as the external auditor of the International Atomic Energy Agency (IAEA), for a period of six years. His tenure will be valid from 2022 to 2027.

Published On : September 29, 2021
Category : Atomic Structure
Q .
An atom differs from its ion in
A)
Mass number
B)
Nuclear charge
C)
Number of neutrons
D)
Number of electrons

Correct Answer :   Number of electrons

Published On : May 29, 2021
Category : Atomic Structure
Q .
Carbon-12 atom has_____
A)
6 electrons, 6 protons, 6 neutrons
B)
6 electrons, 12 protons, 6 neutrons
C)
12 electrons, 6 protons, 6 neutrons
D)
18 electrons, 6 protons and 6 neutrons

Correct Answer :   6 electrons, 6 protons, 6 neutrons

Published On : May 29, 2021
Category : Atomic Structure

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