Pls this was supposed to be done Friday can u pls help me

a)Based on the permanent number of metal or non-metal we can find the valence of the other element .Also based on where in the group or column is placed metal or non-metal.

b) - (i dont know now )

answer; ///i believe its: ///(embolus);

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a