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Final Exam Review

Total questions: 59

Worksheet time: 55mins

Name
Class
Date
1.

Which of the following is a chemical change?

a)

Melting of candle wax

b)

Cutting of trees

c)

Boiling of water

d)

Digestion

2.

A change is a chemical change when it is accompanied by:

a)

energy charge

b)

formation of new substances

c)

change in chemical properties

d)

all of the above

3.
Convert into kilometers.
452.159 meters.
Round to the nearest thousandth.
a)
0.452159
b)
4.52159
c)
45.2159
d)
452159
4.
You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.
a)
25 mg
b)
25,000 mg
c)
250 mg
d)
2,500 mg
5.
How many significant figures: 216 m
a)
1
b)
2
c)
3
d)
0
6.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
7.

An ionic bond is between

a)

metal and metal

b)

metal and nonmetal

c)

nonmetal and nonmetal

8.

A covalent bond is between

a)

metal and metal

b)

metal and nonmetal

c)

nonmetal and nonmetal

9.

What is the oxidation number for Nitrogen?

a)

+4 and -4

b)

-3

c)

+1

10.

Is this the correct lewis dot for Chlorine?

a)

yes

b)

no

11.

Is this the correct lewis dot for Sodium?

a)

yes

b)

no

12.

Which Lewis dot matched the configuration:

1s21s^2   2s22s^2   2p22p^2   2p62p^6   3s13s^1  

a)
b)
c)
13.

Which Lewis dot matched the configuration:

1s21s^2   2s22s^2   2p22p^2  

a)
b)
c)
14.

The name of FeCl₂ is

a)

iron chloride

b)

iron (II) chloride

c)

iron (I) chloride

d)

iron dichloride

15.

What is the name of the compound Na2(SO4)?

a)

Sodium sulfate

b)

Sodium sulfide

c)

Sodium sulfite

d)

Sodium sulfuroxide

16.
What is a positivly charge atom called?
a)
cation
b)
anion
17.

What is a negatively charged atom called?

a)

Anion

b)

Cation

c)

Ion

18.

What is a valence electron?

a)

an electron that is found in the outermost shell of an atom.

b)

an electron found in the innermost shell of an atom.

c)

an electron found in the middle shell.

19.

Alkali metals have...

a)

1 valence electron, +1 charge

b)

2 valence electrons, +2 charge

c)

1 valence electrons, -1 charge

20.

What is required when a number is written in scientific notation?

a)

mantissa

b)

a power of 10

c)

a number between 1 and 10 or equal to 1

d)

any decimal number multiplied by any power

21.

In the year 2000, there were approximately one billion people living in India. What is this number expressed in scientific notation?

a)

1×10101\times10^{10}

b)

10×101010\times10^{10}

c)

1×1091\times10^9

d)

10×10910\times10^9

22.

A small electronic scale in Mr. Dell’s chemistry classroom has a precision of 4.5 × 10-4 grams. Express this precision as a number using standard notation.

a)

0.00045 grams

b)

4.5 grams

c)

0.0045 grams

d)

45,000 grams

23.

protons

a)

negative charge, nucleus

b)

positive charge, shells

c)

positive charge , nucleus

d)

neutral charge, nucleus

24.

neutrons

a)

no charge, shells

b)

positive charge, nucleus

c)

neutral, no charge, nucleus

d)

negative charge, shells

25.

electrons

a)

no charge, nucleus

b)

positive charge, nucleus

c)

negative charge, shells

d)

negative charge, nucleus

26.

atomic number

a)

number of protons/stands for an element

b)

number of neutrons

c)

number of electrons

d)

number of protons and neutrons

27.

mass number

a)

number of protons

b)

number of electrons

c)

number of protons and electrons

d)

number of protons and neutrons

28.

atomic symbol

a)

capital letter

b)

lowercase letter

c)

2 capital letters

d)

2 lowercase leters

29.

lst shell holds

a)

2

b)

8

c)

18

d)

32

30.

2nd shell holds

a)

2

b)

8

c)

18

d)

32

31.

3rd shell holds

a)

2

b)

8

c)

18

d)

32

32.

a charged atom

a)

neutral

b)

isotope

c)

ion

d)

nucleus

33.
An ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
How are ions formed?
a)
Loss or gain of a proton
b)
Loss or gain of an electron by a neutral atom
c)
Loss or gain of a neutron
34.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

35.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
36.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
37.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
38.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
39.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
40.

The letter, C, is a ... of carbon.

a)

Name

b)

Nickname

c)

Chemical Symbol

d)

Pseudonym

41.

True or False: The reactivity of metals tends to decrease as you move from left to right across the periodic table.

a)

True

b)

False

42.

Name this group: These metals are the most reactive.

a)
b)
c)
d)
43.

Name this group: These metals are the second most reactive.

a)
b)
c)
d)
44.

Name this group: These metals are the second most reactive.

a)
b)
c)
d)
45.

Name this group: These metals contain familiar metals such as gold, iron, and copper.

a)
b)
c)
d)
46.

I am a metal


I am in group 2


I am in period 6


I am…

a)

Mo

b)

Re

c)

S

d)

Ba

47.

The trends on the periodic table are dependent on..

a)

how attracted a valence electron is to the nucleus

b)

how attracted valence electrons are to each other

c)

how attracted a valence electrons is to a non valence electron

d)

how attracted a non valence electron is to the nucleus

48.

What makes a valence electron more attracted to the nucleus?

a)

less distance between the nucleus and having less protons

b)

less distance between the nucleus and having more protons

c)

more distance between the nucleus and having less protons

d)

more distance between the nucleus and having more protons

e)

less distance and having more valence electrons

49.

What is the tendency of an atom to attract electrons towards itself in a bond?

a)

atomic radius

b)

ionization energy

c)

shielding

d)

Electronegativity

50.

The higher the ionization energy...

a)

the more attracted the valence electron is to the nucleus so it is harder to remove

b)

the less attracted the valence electron is to the nucleus so it is easier to remove

c)

the more attracted the valence electron is to another electron, so it is harder to remove

d)

the more repelled a valence electron is to another electron, so it is easier to remove

51.

Why does ionization energy decrease going down a group?

a)

Adding more energy levels makes the ve- further from the nucleus so it is easier to remove

b)

There are more valence electrons in the outer shell so the ve- is easier to remove

c)

There are more protons in the nucleus so the ve- is easier to remove

d)

There are less protons in the nucleus so the ve- is easier to remove

52.
Why does electronegativity increase across a period?
a)
Adding more energy levels makes the ve- further from the nucleus
b)
There are more valence electrons in the outer shell
c)
There are more protons  in the nucleus
d)
There are less protons in the nucleus
53.
List the following in order of weakest to strongest ionization energy.
P, Cs, Co, Sr
a)
P, Co, Sr, Cs
b)
Cs, Sr, Co, P
c)
Sr, Cs, Co, P
d)
P, Co, Cs, Sr
54.
List the following from largest to smallest atomic radius.
P, Cs, Co, Sr
a)
P, Co, Sr, Cs
b)
P, Cs, Co, Sr
c)
Cs, Sr, Co, P
d)
Sr, Cs, Co, P
55.

Why doesn't having more protons increase the attraction down a column?

a)

there are more valence electrons in the outermost energy level

b)

actually, there aren't more protons in the nucleus down the column

c)

as energy levels are added, non-valence electrons block the extra protons from attracting ve-

d)

more neutrons block the extra protons

56.

What happens to atomic radius across a period?

a)

the atoms get bigger because the nucleus is bigger as more protons are added

b)

the atoms get bigger because there are more ve-

c)

the atoms get smaller because with more attraction to the extra protons, the e- cloud moves closer to the nucleus

d)

the atoms get bigger because there are more energy levels

57.

Nitrogen is a _ so it will _ electrons when forming an ion.

a)

metal, lose

b)

metal, gain

c)

nonmetal, lose

d)

nonmetal, gain

58.

A full valence shell is considered having _ ve-.

a)

0

b)

2

c)

6

d)

8

59.

Which of the following lose all their ve- when forming an ion?

a)

metals

b)

nonmetals

c)

metalloids

d)

depends on how many ve- the element has

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