: :
(1) What is the density of C?
(2) What is the density of B?
(3) What is the density of Be?
(4) What is the density of Cl?
(5) What is the density of Ar?
(6) What is the density of He?
(7) What is the density of V?
(8) What is the density of Mn?
(9) What is the density of S?
(10) What is the density of Li?