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Chemical Formulas and Atomic Structure Review

Total questions: 52

Worksheet time: 4hrs 45mins

Name
Class
Date
1.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

2.

What is the goal of the Lewis Dot Structure?

a)

To determine the electron position.

b)

To show the element's valence electrons & bonding capabilities.

c)

To find the atomic mass of an element.

d)

To search for the number of electrons in an individual atom.

3.

How many valence electrons should Magnesium have in its Lewis dot model?

a)

1

b)

2

c)

3

d)

4

4.

This is a correct dot diagram for carbon (C)

a)

true

b)

false

5.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

6.
An element with five valence electrons is
a)
phosphorus
b)
oxygen
c)
beryllium
d)
rubidium
7.

How many electrons can go in the first energy level?

a)

2

b)

8

c)

18

d)

32

8.

What is the the outermost shell with electrons?

a)

Shells

b)

Isotope

c)

Orbit

d)

Valence

9.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

10.
What is the name of this element?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
11.
How many electrons should Potassium have around its Lewis dot model?
a)
1
b)
2
c)
7
d)
8
12.

When drawing a Bohr model, how do you determine the number of electrons?

a)

Valence Electrons

b)

Mass Number

c)

Atomic Number

d)

Atomic Mass Unit

13.
The polyatomic ion:  SO42- has the name
a)
Phosphate
b)
Sulfate
c)
Sulfite
d)
Sulfur tetra oxide
14.

What formula results when Ca ions and Br ions bond?

a)

Ca2Br2

b)

CaBr

c)

Ca(br)2

d)

CaBr2

15.
Co+2 combines with NO2-  to form
a)
Co3(NO)2
b)
Co(NO2)2
c)
NO(Co)2
d)
CO(No)3
16.
What is the formula for magnesium chloride?
a)
MgCl
b)
Mg2Cl
c)
MgCl2
d)
Mg(ClO3)2
17.
Which of the following combinations would need roman numerals in the name?
a)
potassium + fluorine
b)
beryllium + oxygen
c)
boron + iodine
d)
silver + oxygen
18.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
19.
Naming a compound of two non-metals requires us to use..
a)
Prefixes
b)
Roman Numerals
c)
Nothing, just name it
20.
The correct formula for Dicarbon Pentachloride is
a)
CCl4
b)
C2Cl5
c)
C5Cl4
21.
The correct name for B2Siis
a)
Boron Trisilicon
b)
Boron Trisilicide
c)
Diboron Trisilicide
22.
Phosphorous trichloride
a)
PCl3
b)
P3Cl
c)
P3Cl3
d)
PCL
23.

A bond between a metal and a nonmetal is called a(n)

a)

covalent bond

b)

ionic bond

c)

metallic bond

d)

transfer bond

24.

A bond between a nonmetal and a nonmetal is called a(n)

a)

covalent bond

b)

ionic bond

c)

metallic bond

d)

transfer bond

25.

What type of bond involves the sharing of electrons between atoms?

a)

covalent bond

b)

ionic bond

c)

metallic bond

d)

transfer bond

26.

Identify the following compound as having ionic or covalent bonds: MgO

a)

ionic

b)

covalent

27.

Identify the following compound as having ionic or covalent bonds: CF4

a)

ionic

b)

covalent

28.

Carbon (C) and Oxygen (O) will make a ___________ bond.

a)

ionic

b)

covalent

c)

metallic

29.

Sodium (Na) and Bromine (Br) will make a _____ bond.

a)

ionic

b)

covalent

c)

metallic

30.

Beryllium (Be) and sulfur (S) will form a ______ bond

a)

ionic

b)

covalent

c)

metalloid

31.
Ionic compounds are formed when one or more valence electrons are transferred from _____
a)
a nonmetal atom to a metal atom
b)
a nonmetal atom to a nonmetal atom
c)
a metal atom to a nonmetal atom
d)
a metal atom to a metal atom
32.
What is it called if there are three-pairs of electrons being shared?
a)
Triple bond
b)
Bond length
c)
Tribond
d)
Chocolate Mousse
33.

Q1. What is the correct name for this polyatomic ion: ClO

a)

hypochlorite

b)

chlorite

c)

chlorate

d)

perchlorate

34.

What is the correct name for this polyatomic ion: CN

a)

carbonate

b)

chromate

c)

Cyanide

d)

Chromite

35.

What is the correct name for this polyatomic ion: OH

a)

hydrogen carbonate

b)

oxonium

c)

hydroxide

d)

acetate

36.

What is the correct name for this polyatomic ion: NO3

a)

carbonate

b)

hydroxide

c)

nitrite

d)

nitrate

37.

What is the correct formula for aluminum hydroxide?

a)

AlOH

b)

Al2(OH)3

c)

Al3(OH)2

d)

Al(OH)3

e)

Al(OH)2

38.
Be careful with this question.....
SO-2  and  Al +3
a)
(SO4)3Al2
b)
(SO4)2Al3
c)
Al3SO4
d)
Al2(SO4)3
39.

Write the formula for Ammonium hydroxide. (careful we have two poly's)

a)

NH(OH)4

b)

NH4OH

c)

OHNH4

d)

correct answer not given

40.

What is the correct formula for ammonium phosphide?

a)

(NH4)3P

b)

(NH4)3PO4

c)

NH4PO4

d)

(NH4)2(PO4)3

41.

What is the correct formula for Calcium Phosphate?

a)

Ca3PO42

b)

Ca2(PO4)3

c)

CaPO4

d)

correct answer is not given

42.

What is the formula for Sodium Nitrate?

a)

NaN

b)

NaN2

c)

Na(NO3)2

d)

NaNO3

e)

SN

43.
What is the formula for manganese(III) oxide?
a)
MgO
b)
Mg2O3
c)
MnO
d)
Mn2O3
44.
What is the formula for magnesium chloride?
a)
MgCl
b)
Mg2Cl
c)
MgCl2
d)
Mg(ClO3)2
45.
The chemical formula for an ionic compound of potassium and oxygen is
a)
KO.
b)
K2O.
c)
K2O2.
d)
KO2.
46.
Write the formula for copper(I) phosphide
a)
Cu3P
b)
CuP
c)
Cu1P
d)
CuP3
47.
The chemical formula of magnesium phosphide is
a)
MgP
b)
Mg₂P₃
c)
Mg₃P₂
d)
Mg₃(PO₄)₂
48.
The chemical formula of iron (III) bromide is
a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
49.
What is the formula for Lithium Oxide?
a)
LiO
b)
LiO2
c)
Li2O
d)
Li2O3
50.
What is the formula for Copper (II) Chloride?
a)
CuCl
b)
Cu2Cl
c)
CuCl2
51.
What is the formula of Lead (IV) Nitride?
a)
PbN
b)
Pb3N
c)
Pb3N4
d)
PbN4
52.
What is formula of Calcium Oxide
a)
Ca2O2
b)
CO2
c)
CaO
d)
C2O2