Question

The energy of an atom in ground state is -4.9ev . The ionisation energy of this atom is

Answer 1

Answer:

4.9ev

I hope it will help you

Answer 2

Answer:

The ionisation energy of this atom is 4.9 eV.

Explanation:

Ionization energy is the energy required to remove an electron from its ground state to a higher energy state. It is the energy that holds the electron in its ground state.

If an electron is removed from the ground state by providing a certain amount of energy electron becomes ionized and hence the material becomes ionized. Here we are given that the Ground state energy of an electron is -4.9 eV.

So we will require energy to move electrons to a higher energy state that will be our ionization energy of the electron.

   = Energy at infinite - ground state energy

   = 0 -(-4.9 eV)

   = 4.9 eV

Hence 4.9 eV is the ionization of electrons with ground state energy -4.9 eV.