Quiz Review

Ionic BondingPeriodic TrendsFormula Writing and Naming

During a lab experiment you mixed together two different solutions and observed whether or not a precipitate formed. A precipitate is defined as a. any liquid mixtureb. The liquid part of a chemical reactionc. A clear solutiond. A solid that forms and separates

from a liquid mixture.

A solid that forms and separates from a liquid mixture.

All atoms on the periodic table desire to become like the noble gases. Why?

a.Noble gases have a full outermost energy level.

b.Noble gases bond easily with other elements.

c.Noble gases make really neat explosions.

d.Noble gases have 7 valence electrons.

Noble gases have a full outermost energy level.

Which statement about the alkali metals is correct?

a.They are located in the left-most column on the periodic table. b.They are extremely nonreactive.c.They are usually gases.d.They form negative ions with a -1 charge.

They are located in the left-most column on the periodic table

Most halogens form compounds by

a.gaining an electron to form a negative ion.b.losing an electron to form a positive ion.c.losing protons.d.losing neutrons.

gaining an electron to form a negative ion

Which element is more reactive, potassium or sodium?

a.Potassium - It gains electrons easily because of its atomic radius.b.Potassium - It loses electrons easily because of its atomic radius.c.Sodium - It gains electrons easily because of its atomic radius.d.Sodium - It loses electrons easily because of its atomic radius.

Potassium - It loses electrons easily because of its atomic radius

Which element is more reactive, fluorine or iodine?

a.Fluorine - It loses electrons easily because of its mass.b.Fluorine - It gains electrons easily because of its mass.c.Iodine - It loses electrons easily because of its mass.d.Iodine - It gains electrons easily because of its mass.

Fluorine - It gains electrons easily because of its atomic mass

In a chemical formula, the number of atoms in the compound is shown by the

a.oxidation numberb.coefficientc.superscriptd.subscript

subscript

In a chemical formula, the number of molecules in the compound is shown by the

a.oxidation numberb.coefficientc.superscriptd.subscript

coefficient

How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?a.2b.6c.4d.8

8

What kind of chemical bond is formed when electrons are transferred from one atom to another?a.ionicb.metallicc.covalentd.hydrogen

ionic

What is the total number of atoms in the compound Ca(ClO3)2?

a.2b.6c.3d.9

9

How many total hydrogen atoms are present in one molecule of ammonium acetate NH4C2H3O2?

a.3b.7c.4d.11

7

ammonium acetate NH4C2H3O2

An atom that has an electrical charge is called a/an

a.elementb.isotopec.iond.molecule

ion

When an atom loses electrons, the atom gains a ________charge.

a.positiveb.negative

positive

When an atom gains an electron, the atom gains a _________ charge.

a.positiveb.negative

negative

A molecule that shares electrons unevenly between the atoms is called

a.nonpolarb.ionic c.polard.neutral

polar

The order of atoms on the periodic table is based on

a.the number of protons in the nucleusb.the number of neutrons in the nucleusc.the electric charge of the nucleusd.atomic mass

the number of protons in the nucleus

Atoms of elements in the same group have the same number of

a.protonsb.valence electronsc.neutronsd.protons and neutrons

valence electrons

Alkali metals are extremely reactive because they

a.have very small atomic masses

b.are not solids at room temperature

c.have one valence electron that is easily lost to form a positive ion.

d.have two valence electrons that form compounds with calcium and magnesium

have one valence electron that is easily lost to form a positive ion.

The electrons in a nonpolar covalent bond are

a. gained b. shared equallyc. lostd. shared unequally

shared equally

The formula for magnesium nitrate is

a. MgNO3

b. Mg(NO3)2

c. Mg2NO3

d. Mg2(NO3)3

Mg(NO3)2

How many electrons are gained/lost by magnesium and what is the charge of the ion that it forms?

a. Loses 2 electrons to form a magnesium ion with a -2 charge.

b. Gains 2 electrons to from a magnesium ion with a -2 charge.

c. Loses 2 electrons to form a magnesium ion with a +2 charge.

d. Gains 2 electrons to form a magnesium ion with a +2 charge.

Loses 2 electrons to form a magnesium ion with a +2 charge

What ions make up the compound FeCl3?

a.1Fe 3+ ion and 1Cl- ionb.1Fe3+ ion and 3 Cl- ionsc.1Fe2+ ionic and 3Cl- ionsd.3Fe3+ ions and 1Cl- ion

1Fe3+ ion and 3 Cl- ions

Which element has the largest atomic radius?

a.Aluminumb.Sulfurc.Silicond.Chlorinee.Phosphorus 

Aluminum

Water is considered a polar molecule because

a.the molecule has a net positive charge

b. the molecule has a net negative charge

c. the molecule has a net zero charge

d. the ends of the molecule have partial negative and positive charges

The ends of the molecule have partial negative and positive charges

Metalloids have characteristics similar to

a. Metalsb. Nonmetalsc. Metals and nonmetalsd. Noble gases

Metals and nonmetals

Ni2O3 is named nickel (III) oxide because it containsa. Three oxygen atomsb. Ni3+ ions.c. Three nickel atomsd. O3+ ions

Ni3+ ions

Write the formula for the following ionic bonding pairs and name them!Ca + BrK + INa + OB + SAl + FAl + SO4

NH4 + ClFe (III) + NO3

Identify the # of atoms of each element and # of molecules

C6H12O6

2 SrCl2

NH4(SO4)2

2Pb(CH3CoO)2

MgSO4

How would you draw a carbon water molecule? Label the atomsHydrogen

Hydrogen

Oxygen

How would you draw a carbon dioxide molecule? Label the atoms.

oxygen

carbon oxygen

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