Power Plant Engineering
The mass number of a substance represents the sum of total number of

Protons and electrons in an atom
Protons and neutrons in a nucleus
Neutrons and electrons in an atom
Protons and neutrons in an atom

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Power Plant Engineering
Ferrite material is

The basic fuel for nuclear paints
The most fissionable material
Basic raw material for nuclear plants
The material which absorbs neutrons and undergoes spontaneous changes leading to the formation of fissionable material

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