How many protons, electrons, and neutrons, respectively, does 89Sr^2+ have?
A.36, 38, 51
B. 38, 38, 51
C. 38, 36, 51
D. 38, 36, 89
D. 36, 38, 53
The following elements exist as diatomic molecules under standard condition:
chlorine
A.oxygen
B. nitrogen
C. boron
D. carbon
E. bromine