Chapter 9 Test

The ionic charge of lead, Pb, in the compound PbS2 is ____

+4

The typical ionic charge of an ion formed by an element in group 7A is ____

-1

The name of a monatomic anion ends in ____

-ide

Anion

Any atom or group of atoms with a negative charge

Cation

Any atom or group of atoms with a positive charge

The cation Fe3+ is formed when ___

an atom of iron loses three electrons

Which element when combined with chlorine would most likely form an ionic compound?

Lithium

The correct name for the N3- ion is___

Nitride ion

Acids are compounds that produce _____ ions when dissolved in water.

hydrogen

Atoms that have a positive or negative charge are called ____

ions

In a polyatomic ion, the -ite ending indicates one fewer _____ atom than the -ate ending.

Oxygen

The metals in Groups 1A, 2A, and 3A ____

lose electrons when they form ions

Monatomic ion

Consist of a single atom with a positive or negative charge

An -ite or -ate ending on the name of a compound indicates that the compound ____

Contains a polyatomic anion

Polyatomic ion

Tightly bound group of atoms that behaves as a unit and carries a charge

Law of multiple proportions

When two elements combine to form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers

Binary compound

A compound composed of two different elements

Acid

A compound that produces hydrogen ions when dissolved in water

Base

A compound that produces hydroxide ions when dissolved in water

A cation is any atom or group of atoms with ____

A positive charge

Elements of Group 4A ____

Do not commonly form ions

Law of definite proportions

In all samples of the same chemical compound, the elements are always combined in the same proportion by mass

In naming a binary molecular compound, the number of atoms of each element present in the molecule is indicated by ____

Prefixes

When naming an ion of a transition metal that has more than one common ionic charge, the numerical value of the charge is indicated by a ____

Roman numeral following the name

A molecular formula _____

Shows the number and kinds of atoms in a molecule of a compound

Binary molecular compounds are composed of two _____ elements.

non-metal