Question

A positively charged body has a deficiency of
A. Electrons
B. Protons
C. Neutrons
D. None of these

Answer 1

Hint: The question is associated with the atom or a molecule and it is asking if the atom or a molecule is positively charged then which kind of deficiency it possesses. We know the charge associated with the electrons, protons, and neutrons on the bases that we can find the answer.

Complete step-by-step solution:
We know that the electron has a negative charge and protons have a positive charge and neutrons have a neutral charge and the number of protons is equal to the number of electrons. Therefore basically an atom has a neutral charge. In case, if the atom loses an electron then there will be an extra proton that has a positive charge then the atom will be positively charged.
Hence in the case of a positively charged body, there will be a deficiency of electrons. Therefore option A is correct.
Additional Information:
An atom can also get a negative charge if it gains an electron, when it gains an electron there will be an extra electron which will result in making the atom negatively charged. Negatively charged ions are called anions.

Note: An atom can lose its electron by thermionic emission, that is, if we give an external heat energy an electron gets excited to a higher level and if sufficient energy is supplied then it is knocked out of its orbit and becomes a free electron making the atom positively charged.