Answer:
1. Energy is required by the man to climb up the stairs.
2. No, it is not possible. Just like the man can only climb the steps one after another, energy transition in an electron occurs from one higher level to another.
3. Without insufficient energy, the man cannot climb on to a next higher step. Similarly, without having absorbed enough energy, electrons cannot transition from a lower to a higher energy level.
4. No. Just as the man cannot occupy any intermediate levels between steps because there are no such intermediate steps, electrons cannot occupy any space between energy level because energy levels or shells are discrete or whole number values.
Explanation:
1. Energy is required by the man to climb up the stairs. Just like the man climbing a set of stairs, electrons will need to absorb energy in the form of light or collision with another electron in order to transition to a higher energy level. The electron is said to be excited.
2. No, it is not possible. Just like the man can only climb the steps one after another, energy transition in an electron occurs from one higher level to another. For each transition step, their is emission or absorption of electromagnetic radiation in the form of quantized units called photons.
3. Without insufficient energy, the man cannot climb on to a next higher step. Similarly, without having absorbed enough energy, electrons cannot transition from a lower to a higher energy level. This is due to the quantization of energy levels where there are only certain quantities of energy that an electron can have in an atom. If an electrons does not possess enough energy equal to that energy level, it cannot transition.
4. No. Just as the man cannot occupy any intermediate levels between steps because there are no such intermediate steps, electrons cannot occupy any space between energy level because energy levels or shells are discrete or whole number values.
