Chapter 5 Test

 

 

Give an example of an electron configuration that belongs to an element that is NOT chemically reactive.

 

 

 

 

Ex. 1s22s22p63s23p6

 

In the compound sodium flouride, NaF, the sodium atom loses one electron and the fluorine atom gains one electron to form ions that have electron configurations similar to _____. 

 

 

 

Neon

 

 

In many compounds, atoms of main group elements form ions so that the number of electrongs in the outermost energy levels of each ion is ___.

 

 

 

8

 

The electron configuration of nitrogen is 1s22s22p3. How many more electrongs does nitrogen need to have an electron configuration similar to neon?

 

 

 

3

 

 

Atoms of copper and iron

 

_______.

 

 

 

tend to form cations.

 

 

 

An anion _____.

 

 

 

is an ion with a negative charge.

 

 

When an octet rule is satisfied, the outermost _____ are filled.

 

 

 

s and p orbitals

 

 

The elements of the ____ group satisfy the octet rule without forming compounds.

 

 

 

noble gas

 

 

Once an atom has full

s and p orbitals in its outermost

energy level, ___________________.

 

 

 

 

it has a stable octet and is unreactive.

 

 

An ion and its parent atom have the same _________.

 

 

 

Atomic Number

 

 

The energy released when a salt is formed from gaseous ions is called the ______.

 

 

Lattice energy

 

 

The lattice energy is a measure of the ____________.

 

 

 

strength of an ionic bond

 

 

If the lattice energy of compound A is greater than that of compound B, then ______________.

 

 

the bonds in the compound A are stronger than the bonds in compound B.

 

 

When ions are formed,

________.

 

 

 

energy can be released or absorbed.

 

 

When an electron is added to an atom,

_________.

 

 

 

energy is usually released.

 

 

 

What is not a property of an ionic compound?

 

 

 

Low boiling point

 

 

Compared with ionic compounds, molecular compounds _______.

 

 

 

have lower melting points.

 

 

The melting point of ionic compounds are higher than the melting points of molecular compounds because _______.

 

 

attractive forces between ions are greater than the attractive forces between molecules.

 

 

Because ions are more strongly attracted in an ionic compound than molecules are attracted in molecular compounds, the melting points of ionic compounds are _____.

 

 

 

higher than the melting points of molecular compounds.

 

 

Ionic compounds are brittle because the strong attractive forces ____.

 

 

cause the compound to vaporize easily.

 

 

In the NaCl crystal, each Na+ and Cl ion has clustered around it ____ of the oppositely charged ions.

 

 

 

6

 

 

In a crystal of an ionic compound, each cation is surrounded by _____.

 

 

anions

 

 

A compound that has the same number of positive and negative charges is said to be ______.

 

 

 

electroneutral.

 

 

What is the ratio of cations to anions in a compound composed of sodium ions, Na+  and carbonate ions?

 

 

 

2 to 1

 

 

The indium(II) ion and the indium(III) ion

_____________.

 

 

 

have charges of of 2+ and 3+, respectively.

 

 

 

What is the metallic ion in the compound CuCl2?

 

 

 

Cu2+

 

 

What is the formula for the compound formed by calcium ions, Ca2+, and chloride ions, Cl?

 

 

 

CaCl2

 

 

The chemical formula for an ionic compound represents the ______.

 

 

 

simplest ratio of ions that results in an electrically neutral compound.

 

 

 

The symbol HCO3 represents a ____.

 

 

 

polyatomic ion

 

 

 

A comparison of calcium sulfate and calcium sulfite shows that _______.

 

 

 

both have a monatomic cation and a polyatomic anion.

 

 

 

What is the formula for the compound formed by lead(II) ions and chromate ions, CrO42-?

 

 

 

PbCrO4

 

 

What is the formula for the compound formed by aluminum(III) and the sulfate ion, SO42-?

 

 

 

Al2(SO4)3

 

 

 

What is the formula for the compound

formed by tin(IV) and the chromate ion,

CrO42-?

 

 

 

Sn(CrO4)2

 

 

What is the formula for the compound formed by the barium ion, Ba2+, and the hydroxide ion, OH?

 

 

Ba(OH)2

 

 

Name the compound Ni(ClO3)2

 

 

 

nickel chlorite

 

 

Name the compound Zn3(PO4)2

 

 

 

zinc phosphate

 

 

 

Name the compound Hg2(NO3)2

 

 

mercury(I) nitrate

 

 

Name the compound KClO3-

 

 

 

potassium chlorate

 

 

Name the compound Fe(NO2)2-

 

 

 

iron(II) nitrate

 

 

 

Name the compound CuCO3-

 

 

 

copper(II) carbonate

 

 

What is the name of Sn3(PO4)4

 

 

 

tin(IV) phosphate

 

 

The name of a polyatomic ion that contains hydrogen begins with the term ______.

 

 

 

hydrogen

 

 

The tendancy of atoms of elements to gain or lose electrons so that their outer s and p orbitals are filled with eight election is called the ______.

 

 

 

octet rule

 

 

 

An electron that occupoes the outermost energy level of an atom is know as a(n) _______.

 

 

 

valence electron

 

 

 

An atom or group of atoms that has an electrical charge because it has either lost or gained one or more electron is a(n) _______.

 

 

 

ion

 

 

 

An ion that has a postive charge is ______.

 

 

 

Cation

 

 

 

An ion that has a negative chage is a(n) ____.

 

 

 

anion

 

 

 

The ion formed by an atom of a metal is a(n) ______.

 

 

 

cation

 

 

 

The ion formed by an atom of nonmetal element is a(n) ________.

 

 

 

anion

 

 

 

A compound resulting from the formation of an ionic bond between a cation and an anion is a(n) _______.

 

 

 

salt (ionic compound)

 

 

The energy released when 1 mol of a salt is formed from gaseous ions is called the ______.

 

 

 

lattice energy

 

 

A repetitive geometric arrangement of ions, atoms, or molecules that forms a crystal structure is called the ______.

 

 

 

crystal lattice

 

 

 

The simplest repeating unit of

a crystal lattice is a(n)

___________.

 

 

 

unit cell

 

 

 

The crystal structure of a salt depends on the _______ of the cation and anion and the _______ of cations anions.

 

 

 

Sizes

Ratios

 

 

 

In naming a binary ionic compound, the name of the _____ appears first followed by the name of the _______.

 

 

 

metal

non-metals

 

 

The condition of having equal number of positive and negative charges is known as _______.

 

 

 

electioneutrality

 

 

 

The name of the ion O2- is the ______.

 

 

 

oxide ion

 

 

 

the name of the ion Cu+ is the _______.

 

 

 

copper(I) ion

 

 

 

The chemical  formula for the compound potassium flouride, which contains K+ and F ions, is ____.

 

 

 

KF

 

 

The chemical formula for the compound strontium sulfide, which contains Sr2+ and S2- ions, is ____.

 

 

 

SrS

 

 

An electrically charged group of 2 or more bonded atoms that functions as a single ion is called a(n) _______.

 

 

 

polyatomic ion

 

 

The chemical formula for the compound sodium chlorite, which contains Na+ and ClO2ions, is _______.

 

 

 

NaClO2

 

 

The formula for the compound ammonium sulfate, which contains ions, is ___________.

 

 

 

(NH4)2SO4

Get access to
knowledge base

MOney Back
Guarantee
No Hidden
Charges
Unlimited
Knowledge base
Become a Member
Haven't found the Essay You Want? Get your custom essay sample For Only $13.90/page