Which isotope of hydrogen : Protium, deuterium or tritium has maximum ionisation energy and why?
Which isotope of hydrogen : Protium, deuterium or tritium has maximum ionisation energy and why?
As the isotopes belong to the same element they contain the same number of protons.
Let's consider an Hydrogen atom, in Protium, there is an electron and a proton.
In Deuterium, there is an electron,a neutron and a proton.
Ionisation Energy is the amount of energy provided to an atom so that an electron is removed from the atom (It's the 1st ionisation energy ).
The attraction between the electron and the nucleus is the electrostatic force and depends on the charge of subatomic particles. The saga can continue from here .......
But you have got your answer.
As Neutron is neutral so it doesn't exert any electrostatic force (in isotopes only the number of neutrons is variable ).
Neutrons have mass, won't it affect the ionisation energy?
Yes, it does. But the gravitational force between the neutrons and electrons is too small to consider. So the ionisation energy remains somewhat constant.
As the isotopes belong to the same element they contain the same number of protons.
Let's consider an Hydrogen atom, in Protium, there is an electron and a proton.
In Deuterium, there is an electron,a neutron and a proton.
Ionisation Energy is the amount of energy provided to an atom so that an electron is removed from the atom (It's the 1st ionisation energy ).
The attraction between the electron and the nucleus is the electrostatic force and depends on the charge of subatomic particles. The saga can continue from here .......
But you have got your answer.
As Neutron is neutral so it doesn't exert any electrostatic force (in isotopes only the number of neutrons is variable ).
Neutrons have mass, won't it affect the ionisation energy?
Yes, it does. But the gravitational force between the neutrons and electrons is too small to consider. So the ionisation energy remains somewhat constant.
