Give the formulas for all of the elements that exist as diatomic molecules under normal conditions.
See if you can do this without looking anything up.

H_2_ N_2_ O_2_ F_2_ Cl_2_ Br_2_ I_2_

Give the symbols for all of the elements that exist as monatomic gases under normal conditions.

He Ne Ar Kr Xe Rn

Complete the following table by providing a formula that best represents a macroscopic sample of the element.

Name Formula
iron ?

nitrogen ?

boron ?

neon ?

Name Formula
iron Fe

nitrogen N_2_

boron B

neon Ne

what is the compound NH_3_

ammonia

what is the compound NO

nitric oxide

what is the compound P_4_O_10

tetraphosphorus decoxide

what is the compound NO_2_

Nitrogen dioxide

what is the compound BrCl_5_

Bromine Pentachloride

what is the compound N_2_O_5_

Dinitrogen pentaoxide

What is the name of the compound with the formula S2F10?

disulfur decafluoride