What will be the atomicity of:
a) the molecule which is consumed during respiration and released during photosynthesis.
b) the red coloured element which is found on the tips of match sticks.
c) the pale blue gas which forms a layer that absorbs the sun's UV radiation.
2, 4, 3 respectively
The elements are oxygen, red phosphorus and ozone; their atomicity is 2, 4, and 3 respectively.
The oxygen molecule has 2 atoms each. The ozone molecule has 3 oxygen atoms combined together in a molecule. And red phosphorus used in matchsticks has 4 phosphorus atoms combined together in a chain-like molecule.