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H Semester 1 review

Total questions: 83

Worksheet time: 21hrs 45mins

Name
Class
Date
1.

Randy and Mia are looking at organic models. They wonder what if I change the number of neutrons what will happen?

a)

you get an ion

b)

nothing, so they just grab a snack

c)

you get an isotope

d)

you get a different element

2.

Arjun is learning about elements and their atomic numbers. He asks Marcus, what is the atomic number of an element?

a)

The atomic number of an element is the number of neutrons in the nucleus of an atom.

b)

The atomic number of an element is the number of electrons in the nucleus of an atom.

c)

The atomic number of an element is the number of protons and neutrons in the nucleus of an atom.

d)

The atomic number of an element is the number of protons in the nucleus of an atom.

3.

In a chemistry class, Arjun and Billy are discussing the relationship between the number of protons and the atomic number of an element. What is the correct relationship?

a)

The number of protons in an atom is half of the atomic number.

b)

The number of protons in an atom is greater than the atomic number.

c)

The number of protons in an atom is unrelated to the atomic number.

d)

The number of protons in an atom is equal to the atomic number.

4.

An atom of carbon has 6 protons and 7 neutrons in its nucleus. If the atom is neutral, how many electrons does it have?

a)

0

b)

7

c)

6

d)

13

5.

An atom of iodine has 7 valence electrons. What will an atom of iodine MOST likely do to be stable?

a)

Lose 1 electron

b)

Lost 7 electrons

c)

Gain 1 electron

d)

Neither gain nor lose any valence electrons

6.

How are ionic and covalent bonds alike?

a)

They both form organic molecules.

b)

They both fill outer electron shells.

c)

They both transfer electrons from one atom to another.

d)

They both transfer protons from one atom to another.

7.

What type of bond is formed when atoms share electrons?

a)

Covalent

b)

Ionic

c)

Hydrogen

d)

Polyatomic

8.

An atom of neon has 8 valence electrons. What will an atom of neon MOST likely do to be stable?

a)

Gain 1 electron

b)

Lose 2 electrons

c)

Lose 8 electrons

d)

Neither gain nor lose any valence electrons

9.

The isotope uranium-235 has 92 protons and 143 neutrons. Therefore, its mass number is

a)

92.

b)

235.

c)

143.

d)

impossible to determine.

10.

Which atom will have a +1 charge?

a)

3 protons

4 neutrons

3 electrons

b)

3 protons

4 neutrons

4 electrons

c)

3 protons

4 neutrons

2 electrons

d)

3 protons

3 neutrons

3 electrons

11.
How many electrons should Helium have around its Lewis dot model?
a)
1
b)
2
c)
7
d)
8
12.

Which of the elements in the picture has correct electron dot notation?

a)

1

b)

2

c)

3

d)

4

13.

Why do carbon, silicon, and tin all react similarly?

a)

They are located in the same period

b)

They have an even atomic number

c)

They have the same number of energy levels

d)

They are located in the same group

14.

What is the valence electron count of the alkaline earth metal family?

a)

-2

b)

-1

c)

2

d)

1

15.

The diagram below is the bohr model of an atom. Which best describes this atom?

a)

it has a full outermost shell

b)

it has 6 valence electrons

c)

it has a positive charge

d)

it has 6 electrons

16.

How many valence electrons are in a neutral atom of nitrogen?

a)

5

b)

3

c)

2

d)

15

17.

which two elements have the same number of valence electrons?

a)

C and O

b)

Cl and F

c)

Ga and Ge

d)

Na and Mg

18.

The alkali metals elements are in the same family in the periodic table because they all have

a)

eight valence electrons

b)

seven valence electrons

c)

two valence electrons

d)

one valence electron

19.

Elements with the same valence electron configuration can be expected to have similar

a)

chemical reactivity

b)

number of protons

c)

number of electrons

d)

atomic mass

20.

The diagram represents an element. Which best describes this element?

a)

10 protons and 9 neutrons in the nucleus

b)

9 protons and 9 neutrons in the nucleus

c)

2 electrons in the first energy level; 8 electrons in the second energy level

d)

2 electrons in the first energy level; 7 electrons in the second energy level

21.

Match the following

a)

proton

1.

lives in the nucleus & positively charge

b)

electron

2.

lives in the cloud & negatively charge

c)

neutron

3.

lives in the nucleus & no charge

d)

valence electron

4.

lives in the last ring & negatively charge

e)

nucleus

5.

where protons & neutrons are found and largest mass

22.

Label the metals, nonmetals and metalloids

a)metals
b)nonmetals
c)metalloids
d)metals
1
2
3
4
1)
2)
3)
4)
23.

Valence electrons live in the ​ (a)   ring of the atomic structure. It tells us how ​ (b)   the elements are. Group 1 are the ​ (c)   whereas group 18 are the ​ (d)  

Choose from the below words
outermost
reactive
most reactive
least reactive
innermost
24.

Is the NaF an ionic or a covalent bond?

a)

ionic

b)

covalent

25.

Is ClO2 ionic or covalent?

a)

ionic

b)

covalent

26.

Why do all bonds form?

a)

so the number of protons equals the number of electrons

b)

so an atom can become unstable

c)

to fill the outermost energy level

27.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
28.
If an oxygen atom has 8 protons (+) and 10 electrons (-), what is it's charge?
a)
O10-
b)
O8+
c)
O2-
d)
O10+
29.

What is the correct Lewis Dot Structure for ammonia NH3

a)
b)
c)
d)
30.

Indicate below which elements exist as diatomic molecules

a)

hydrogen

b)

nitrogen

c)

oxygen

d)

fluorine

31.
What's the name of the compound NH4NO3 ?
a)
nitrogen hydrogen oxygen
b)
ammonium nitrite
c)
nitrogenous water
d)
ammonium nitrate
32.
Ammonium and oxygen would combine to form:
a)
(NH4)2O
b)
NH4O2
c)
(NH4)O2
d)
NH6O3
33.

Avery is working on a chemistry project and needs to determine the charge of iron in the chemical formula FeCl3 used in her experiment. What is the charge of iron?

a)

1+

b)

2+

c)

3+

d)

1-

34.

What is the formula for chromium (II) hydroxide?

a)

CrOH

b)

Cr(OH)1

c)

Cr(OH)3

d)

Cr(OH)2

35.

What is the formula for Calcium Chlorate?

a)

Ca(ClO3)2

b)

CaCl2

c)

CCl

36.

C2H3O2-

a)

acetate

b)

Hydrogen Carbonate

c)

hydroxide

d)

sulfate

37.

NH4+

a)

nitrate

b)

nitrite

c)

phosphate

d)

ammonium

38.

CO32-

a)

carbonate

b)

phosphate

c)

sulfate

d)

hydroxide

39.

CN-

a)

hydroxide

b)

sulfate

c)

cyanide

d)

phosphate

40.

OH-

a)

ammonium

b)

hydroxide

c)

phosphate

d)

sulfite

41.

SO32-

a)

sulfite

b)

nitrite

c)

sulfate

d)

hydroxide

42.

The innermost 1st energy level has a maximum of how many electrons?

a)

1

b)

2

c)

6

d)

8

43.

How many electrons can go in the Second energy level?

a)

2

b)

8

c)

18

d)

32

44.

How would you draw a Lewis dot diagram for Magnesium?

a)
b)
c)
d)
45.

How many valence electrons does Aluminum Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

46.

How many energy levels are being shown in total?

a)

1

b)

2

c)

3

47.

This atom has an atomic number of ​ (a)   .

This atom has a mass number of ​ (b)   .

This atom has an atomic mass of ​ (c)   .

This atom has ​ (d)   valence electrons.

Choose from the below words
8
16
15.999
6
24
2
12
10
3
48.

Match the following

a)

1.

potassium

b)

2.

lithium

c)

3.

magnesium

d)

4.

titanium

e)

5.

sodium

49.

Which side of the periodic table are the nonmetals located?

A
B
50.

Categorize the options into the right categories

Categorize the following

copper

potassium

strontium

magnesium

carbon

chlorine

nitrogen

argon

helium

silver

Metals
Nonmetals
51.

Which group is the Halogens?

A
B
C
D
52.

Which group is the Noble Gases?

A
B
C
D
53.

Match the following

a)

Alkali Metals

1.

1 valence electron and very reactive

b)

Alkaline Earth Metals

2.

2 valence electrons and very reactive

c)

Halogens

3.

7 valence electrons & highly reactive

d)

Noble Gases

4.

8 valence and completely unreactive

54.

A single carbon can form up to (a)   covalent bonds

55.

How many protons does this element have?

a)

20

b)

40

c)

8

d)

2

56.

How many electrons does this element have?

a)

11

b)

23

c)

12

d)

1

57.

How many neutrons does this element have?

a)

45

b)

80

c)

35

d)

7

58.

What element does this bohr model represent?

a)

Si

b)

S

c)

Ni

d)

H

59.

What element does this bohr model represent?

a)

Si

b)

S

c)

Ni

d)

H

60.
Covalent bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
61.
Ionic bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
62.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
63.

In this molecule, each CARBON makes (a)   bonds.

Choose from the below words
1
2
3
4
64.

The desire for an element to have 8 electrons around it is called 

a)
Octet Rule
b)
Resonance
c)
Ionization energy
d)
Electronegativity
65.
What can be generalized about covalent bonds?
a)
Electrons will be exchanged.
b)
Electrons will be transferred.
c)
Electrons will be given and taken.
d)
Electrons will be shared.
66.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal & 1 Metal
c)
2 Metals
d)
2 Noble Gases
67.

What is the formula for the ammonia molecule shown below?

a)

NH

b)

NH3

c)

N3H3

d)

N3H

68.
Is this image an example of covalent bonding?
a)
Yes
b)
No
69.
Name this covalent compound: CO
a)
Carbon Oxide
b)
Carbon Monoxide
c)
Colorado
d)
Carbon Oxygenide
70.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
71.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
72.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
73.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2 2s2 2p6 3s2 3p5
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p6 3s2 3p7
74.

What is the maximum number of electrons that an S orbital can have?

a)

1 electron

b)

2 electrons

c)

3 electrons

d)

4 electrons

75.

How many electrons can the d sublevel(orbital) hold?

a)

8

b)

10

c)

2

d)

4

76.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
77.

Which area on the periodic table represents the electrons in the "d" sublevel?

a)

representative elements

b)

columns 3-8

c)

rare earth elements

d)

transition elements

78.
Anions are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
79.
How many electron can be found in a p orbital?
a)
2
b)
3
c)
4
d)
6
80.
What is the noble gas configuration for beryllium?
a)
[He]1s2
b)
[He]2s2
c)
[Li]2s1
d)
[Li]2s2
81.
What is the noble gas configuration for boron?
a)
[He]1s22s2
b)
[He]2s22p2
c)
[He]2s22p1
d)
[Li]2s22p1
82.
What is the noble gas configuration for Sulfur?
a)
[Ar] 3p4
b)
[He] 3s2 3p4
c)
[Ne] 3s2 3p4
d)
[Na] 3s2 3p4
83.

Match the elements with their electron configuration! (3 minutes)

a)

1s2 2s2 2p3

1.

Nitrogen, N

b)

1s2 2s2 2p6 3s2 3p3

2.

Phosphorus, P

c)

1s2

3.

Helium, He

d)

1s2 2s2 2p6 3s2 3p6

4.

Argon, Ar

e)

1s2 2s2 2p6 3s2 3p6 4s2 3d5

5.

Manganese, Mn

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