An electron in a hydrogen atom moves from level 1 to level 4. the electron then drops from level 4 to level 2. which statement describes the most likely result? the energy absorbed in the first move equals the energy released in the second move. the energy absorbed in the first move is greater than the energy released in the second move. the energy released in the first move equals the energy absorbed in the second move. the energy released in the first move is greater than the energy absorbed in the second move.

Option B)

The energy absorbed in the first move is greater than the energy released in the second move.

To move from low energy level to high energy level, electron absorb energy. The more far apart the energy levels are, the bigger the energy will be absorbed to make the transition.

Similarly, When electron move from high energy level to low energy level it emits energy. The more far apart the energy levels are, the more bigger the energy will be released during the transition.

Electron moves from 1st level to 4th level, high energy is absorbed than when it moves back from 4th level to 2nd level because of less energy level travel than the first move.

The correct choice is Option (B)  The energy absorbed in the first move is greater than the energy released in the second move.

According to Bohr atomic model, energy levels inside an atom are the specific energies that electrons can have when occupying specific orbitals called shells. When an electron absorbs energy it jumps to upper shell and when loses energy it comes down. If an electron jumps from 1st level to 4th level its energy is increased by a factor of 4 and when it jumps back to second shell its energy is reduced by factor 2. So the energy is still greater as compared to 1st level.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.