Question

Nucleus contains the three subatomic particles: electrons, protons and neutrons.

• A. True
• B. False

Answer 1

The correct option is B False

• Atoms are composed of electrons, protons, and neutrons.
• Protons and neutrons are subatomic particles present in the nucleus of an atom.
• Electrons revolve around the nucleus in a fixed orbit known as energy shells.

• Proton- A proton is a positively charged subatomic particle present in the nucleus of an atom.
• It is denoted by the letter 'p' in chemistry.
• It was discovered by Eugen Goldstein.
• The mass of a proton is 1.672×10⁻²⁷ kg.
• The charge present of a proton is equal to an electron in magnitude but opposite in sign.
• The charge present on a proton is 1.602×10⁻¹⁹ C.
  
• Electron- An electron is a negatively charged subatomic particle revolving around the nucleus of an atom.
• It is denoted by the letter 'e' in chemistry.
• It was discovered by J.J.Thomson.
• The mass of an electron is 9.109×10^-31 kg.
• The charge present on an electron is -1.602×10⁻¹⁹ C.
  
• Neutron- A neutron is a neutral subatomic particle present in the nucleus of an atom.
• It was discovered by James Chadwick.
• It has a rest mass equal to 1.674 × 10⁻²⁷ kg.

Hence, the given statement is false.