What happens when an electron in a hydrogen atom moves from the excited state to the ground state?
a
Continuous amounts of energy are released.
b A photon is emitted.
C A quantum of energy is absorbed.
d
A different electron moves from the ground state to
the excited state at the same time.

Particles vibrate in a rigid structure and do not move relative to their neighbors.

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.