Question

Electrons in the atom are held to the nucleus by(a) coulomb’s force(b) nuclear force(c) vander waal’s force(d) gravitational force

Answer 1

By electrostatic force of attraction

Answer 2

Electrons in the atom are held to the nucleus by the Coulomb's Force (option-a).

• Coulomb's force is a force of attraction or repulsion between the two charges ( same or opposite sign) that are separated by a particular distance.

• Negatively charged particles that revolve around the nucleus are called electrons.
• One electron has - 1.6 x 10⁻¹⁹ coulombs of charge.
• The nucleus of an atom consists of positively charged particles called protons and neutrons that are neutral in nature.
• Charge on a proton is the same as that of an electron but the sign is opposite i.e + 1.6 x 10⁻¹⁹C.
• Coulomb's force of attraction is implied between the revolving electrons and the nucleus of an atom.
• Because the nucleus has a positive charge (due to protons) and it attracts the negatively charged electrons.
• It is the stronger force as compared to nuclear force, and van der Waal's force.