Now that you have examined the changes in co2 concentration within each year, consider the changes that occurred between the years 1990 and 2010. begin by calculating the average co2 concentration for the 12 months of each year. what was the average co2 concentration in 1990?

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.