: :
(1) What is the density of Li?
(2) What is the density of B?
(3) What is the density of H?
(4) What is the density of N?
(5) What is the density of P?
(6) What is the density of Na?
(7) What is the density of Sc?
(8) What is the density of K?
(9) What is the density of Ne?
(10) What is the density of Ar?