Exam 12: Chemical Bonding

The sharing of two electrons by unlike atoms generally forms a(n)______________ bond.

In 400 B.C.,a Greek named ______________ championed the idea that if matter were repeatedly cut into smaller divisions,eventually an indivisible particle would be reached.

The percentage composition by mass of water is approximately

In a covalent molecule,each atom (except hydrogen)generally has ______________ electrons in its outer shell.

The percentage by mass of chlorine

The preferred name of NiS is

Element A,mass 9.00 g,reacts exactly with 5.00 g of element B to form 14.00 g of compound AB.If 36.00 g of element A is reacted with 41.00 g of element B to form the same compound,what mass of compound AB will be formed?

When atoms unite by transferring electrons,they should form

The Lewis symbol •X• would be characteristic of which group?

Which of the following ions is isoelectronic with a neon atom?

Which of the following ions is isoelectronic with an argon atom?

The symbol for the element that is the major component of steel is ______________.

Which gas gives the characteristic odor to smelling salts and some household cleaners?

In the liquid phase,covalent compounds generally conduct electricity

______________ is the measure of the ability of an atom to attract shared electrons to itself.

The formula mass of water,H₂O,is