Question

What is the positive charge on the nucleus of an atom due to?

Answer 1

Hint: An atom is a tiny particle and consists of sub-atomic particles like protons, electrons and neutrons. In the center of an atom a heavy portion of mass is present and can be called a nucleus. Nucleus consists of protons which are positively charged subatomic particles and neutrons which are neutral charged subatomic particles.

Complete answer:
The heavy portion in the center of an atom can be termed a nucleus. Generally, the nucleus is a positive charge due to the presence of positively charged subatomic particles. The subatomic particles are very much smaller than atoms and present in the atom. There are mainly three different subatomic particles called protons, neutrons and electrons.
Protons and neutrons are present in the nucleus and electrons are present outside the nucleus of an atom. The protons are positively charged subatomic particles and neutrons are zero charged subatomic particles.
Due to the presence of protons which are positively charged subatomic particles the nucleus of an atom will be positive. Thus, positive charge on the nucleus of an atom due to the protons in the nucleus.

Note:
The atom will be stable by consisting of the positive charge of the nucleus and negatively charged electrons outside the nucleus. These two oppositely charged particles attract each other and the atom will be stable by containing equal forces caused by equal number of protons and neutrons. Every atom consists of equal protons and electrons to be stable.