For the H, D and T tabulate three sub-atomic particles found in each of them

Explanation:

The three sub atomic particles are;

Neutrons, Electrons and Protons

Hydrogen - H

Neutrons: 0

Electrons: 1

Protons: 1

Deuterium - D

Neutrons: 1

Electrons: 1

Protons: 1

Tritium - T

Neutrons: 2

Electrons: 1

Protons: 1

141.88ml

Explanation:

From Boyles law, the pressure of a gas is inversely proportional to the volume at constant temperature, which can be expressed below

P1V1=P2V2

P1= initial pressure= 4.28atm

P2= final pressure=7.24atm

V1= initial volume= 240.0mL

V2= final volume=?

Making V2 subject of the formula we have, V2= (P1V1)/P2 then substitute those values we have

V2= (4.28atm× 240.0mL)/7.24atm

V2= 1027.2/7.24

V2=141.87mL

Therefore,the final volume of the sample is 141.87mL