Question

The diagram shows Niels Bohr’s model of an atom.


What happens when the electron moves from the first energy level to the second energy level?
Energy is absorbed, and an emission line is produced.
Energy is released, and an emission line is produced.[wrong]
Energy is absorbed by the atom.
Energy is lost from the atom.

Answer 1

when the electrons are jumped from low to high energy level, energy is absorbed making them able to jump to a higher state. it cant be emission line produce because that's when energy is released but in this case, it's being absorbed. I would go with "energy is absorbed by the atom"

Answer 2

Answer: When the electron moves from the first energy level to the second energy level, energy is absorbed.

Explanation:

When an electron moves from first energy level to the second energy level,energy is being absorbed by the atom which means that the electron jumps from lower energy level to higher energy level.

Bohr's Equation

E=$\frac{-E_0}{n^2}$

where,

E= energy of an  electron in 'n' level (n=1,2,3...etc)

$E_0$= energy of an electron in ground state.

as we can see from this equation energy is inversely proportional to the n principle quantum number which means that there will be decrease in energy. As the energy is decreasing in magnitude with the negative sign  which actually means there is increase in energy.