How is the group trend in atomic radius related to the tendency of an element to lose an outer shell electron (think ionization energy)?

What provides structure to the human body?

Describe the interaction that occurs between two objects with the same electrical charge.

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.