14) the formula k2s indicates that

Athe potassium ion is twice the size of the sulfide ion

Bsulfur and potassium form a covalent bond

Cthere are two potassium ions for each ion of sulfur

Dthere are two sulfur ions for each ion of potassium

15) Fluorine, F, forms a binary ionic compound with lithium Li. What is the name of this compound?

AFluorine lithide

BLithium fluoride

c)Lithium fluorine

Dfluorine lithium

16) the standard on which the atomic mass unit is based is the mass of a

Aproton

Bneutron

Cchlorine-35 atom

Dcarbon-12 atom

17)Two highly reactive elements in period 2 are the metal lithium and

Ametalloid arsenic

Bnonmetal selenium

Cnonmetal fluorine

d)nonmetal krypton