Ido not get question 2 and 3 they are really hard someone can me? ?

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

In apex! a liquid heated beyond a certain temperature becomes

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.