Question

Which of the following statements about the electron is incorrect?
(i) It is a constituent of cathode rays
(ii) The mass of an electron is equal to the mass of a neutron.
(iii) It is a basic constituent of all atoms.
(iv) It is a negatively charged particle​

Answer 1

Answer:

The mass of an electron is equal to the mass of a neutron. this one is the incorrect answer

Explanation:

Characteristics of elelctrons are:

1. It is a negatively charged particle.

2. The mass of electron is 200 times smaller than the mass of neutron

The mass of electron is 9.10939×10  

−31

 kg and that of neutron is 1.67493×10  

−27

 kg.

3. They are basic constituent of all atom.

4. It is a constituent of cathode rays.