What will be the atomicity of:
a) The molecule which we consume during respiration and this molecule is also released during photosynthesis.
b) The red coloured element which we use in match boxes.
c) The pale blue gas which forms a layer that absorbs sun's UV radiation.
2, 4, 3 respectively
The molecules are oxygen, phosphorus and ozone respectively. Their atomicity is 2, 4, 3 respectively as the oxygen molecule has 2 atoms each, phosphorus element has 4 phosphorus atoms combined together and ozone molecule has 3 oxygen atoms combined together.