For hydrogen atom, energy of an electron in first excited state is – 3.4 eV, K.E. of the same electr — JEE Mains Chemistry Past Papers Chemistry Question

Question

For hydrogen atom, energy of an electron in first excited state is – 3.4 eV, K.E. of the same electron of hydrogen atom is x eV. Value of x is______ × 10–1 eV. (Nearest integer)