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Chemistry Fourth Quarter Extra Credit

Total questions: 50

Worksheet time: 58mins

Name
Class
Date
1.

The particles in the picture are tightly held together with very tiny movement. They have shape and fixed volume. Therefore, the picture represents _________.

a)

solid

b)

liquid

c)

gas

2.

What state is represented in the gif?

a)

solid

b)

liquid

c)

gas

3.

In which state of matter will there be the LARGEST space between molecules?

a)

solid

b)

liquid

c)

gas

4.

What does STP stand for in chemistry?

a)

Standard Temperature and Pressure

b)

Standard Time and Pressure

c)

Standard Temperature and Power

d)

Standard Test Procedure

5.

How many elements had been identified by 1700?

a)

13

b)

7

c)

23

d)

118

6.

Which scientist is known for the Law of Triads?

a)

Mendeleev

b)

Moseley

c)

Dobereiner

d)

Seaborg

e)

Rutherford

7.

Match the following

a)

Dobereiner

1.

The middle element of a triad is midway

b)

Newland

2.

Every eighth element is similar to first

c)

Mendeleev

3.

Predicted existence of unknown elements

8.

Correctly identify the properties of each type of element.

Categorize the following

A good conductor

Malleable and easily shaped

Ductile

80% of Elements

Almost all solids at room temp

Poor conductors

Opposite properties than metals

Brittle

Solids at room temp

Typically poor conductors

Similar to both metals and nonmetals

Metals
Nonmetals
Metalloids
9.

Which period does Lithium (Li) belong to?

a)

1

b)

2

c)

3

d)

4

10.

What group does Lithium (Li) belong to?

a)

1

b)

2

c)

3

d)

4

11.
Sodium (Na) is found in period 
a)
3
b)
2
c)
4
d)
1
12.

Group 1: These metals are extremely reactive. They all have one valence electron. They are shiny and silver in color. They are soft and can be cut with a knife.

a)

Transition Metals

b)

Alkali Metals

c)

Alkaline Metals

d)

Lanthanides

13.

Group 2: Slightly less reactive because they have 2 valence electrons. They are silver colored and more dense that Group 1 metals.

a)

Transition Metals

b)

Alkali Metals

c)

Alkaline-earth Metals

d)

Actinides

14.

An orbital indicates a high probability of finding what?

a)

A proton

b)

An electron

c)

An energy shell

d)

A neutron

15.

Which energy shell is closest to the nucleus?

a)

1

b)

2

c)

4

d)

3

16.

Which of the following is NOT a shape of the f orbital?

a)

b)

c)

17.

Which of the following describes the shape of the p orbital?

a)

b)

c)

d)

18.
Oxygen has 8 protons. What is oxygen's atomic number?
a)
16
b)
8
c)
15.999
d)
0
19.

This picture best represents ___________________ atomic model.

a)

Thomson's

b)

Dalton's

c)

Bohr's

d)

Chadwick's

20.

Match the following chemist to his achievements

a)

James Chadwick

1.

Discovered the neutron

b)

Eugen Goldstein

2.

Discovered the proton

c)

JJ Thomson

3.

Created the plum pudding model

d)

John Dalton

4.

Created postulates about atomic theory

e)

Ernest Rutherford

5.

Gold foil experiment

21.

Label the element correctly

a)Element Name
b)Atomic Number
c)Element Symbol
d)Atomic Weight
1
2
3
4
1)
2)
3)
4)
22.

Which arrow points to the neutrons?

A
B
C
23.

Which arrow points to the protons?

A
B
C
24.

Label this atom's particles.

a)

Protons

b)

Electrons

c)

Nucleus

d)

Neutrons

1
2
3
4
1)
2)
3)
4)
25.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

26.

Which of these is incorrect?

a)
b)
27.

Which of these is correct?

a)
b)
c)
28.

Ionic Bonds

a)

metal with nonmetal

b)

nonmetal with nonmetal

29.

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

30.

What is the charge of a sodium ion?

a)

+2

b)

+1

c)

-1

d)

-2

31.
Group 17 always has ions with a charge of 
a)
+1
b)
+2
c)
-1
d)
-2
32.

What is the primary goal that metal atoms are trying to achieve when they participate in metallic bonding?

a)

A ductile and malleable structure

b)

Stable electron configurations

c)

Very high melting and boiling points

d)

Mobile valence electrons

33.

What is the octet rule?

a)

A full valence shell must have 12 electrons

b)

A full valence shell must have 10 electrons

c)

A full valence shell must have 8 electrons

d)

A full valence shell must have 6 electrons

34.

CaCl

a)

Metal with Nonmetal

b)

Nonmetal with Nonmetal

35.

NaO

a)

Metal with Nonmetal

b)

Nonmetal with Nonmetal

36.
Where are the nonmetals located on the periodic table? 
a)
Blue
b)
Red
c)
Green
37.
What is the VSEPR theory used to predict?
a)
Bond Strength
b)
Polarity
c)
Molecular Shape
d)
Electronegativity
38.

Organize these options into the correct type of bond.

Categorize the following

metal donate valence electrons to nonmetal

formed between metals and nonmetals

formed between nonmetals

involves sharing of electron pairs

can be polar or nonpolar

atoms will have a LOW electronegativity difference

atoms will have a HIGH electronegativity difference.

Ionic Bond
Covalent Bond
39.

The atoms in a water molecule are held together by covalent bonds. This means that the bonded atoms

a)

Lose protons

b)

Lose electrons

c)

Share electrons

d)

Switch neutrons

40.
The tightness across the surface of water that enables paper clips to float is ____________.
a)
adhesion
b)
capillary action
c)
surface tension
d)
polarity
41.

Attractions between water molecules are called ....

a)

Covalent bonds

b)

Ionic bonds

c)

Polar bonds

d)

Hydrogen bonds

42.
In a solid, the particles
a)
vibrate in place
b)
slide past one another
c)
overcome the strong attraction
d)
move freely in any direction
43.
Condensation is . . . .
a)
gas to liquid
b)
liquid to gas
c)
gas to solid
d)
solid to liquid
44.
Freezing (or solidification) is . . . .
a)
liquid to solid
b)
solid to liquid
c)
solid to gas
d)
solid to plasma
45.
5. What is it called when a solid turns directly into a gas?
a)
Sublimation
b)
Condensation
c)
Liquid
46.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
47.

Which phase change is being represented in the particle diagram?

a)

melting

b)

evaporation

c)

condensation

d)

freezing

48.

Letter "C" represents which state of matter on the phase change diagram shown.

a)

Solid

b)

Liquid

c)

Gas

49.

In this phase change diagram, as you go from left to right, energy is being released. Determine at what temperature did this substance first become a liquid?

a)

100 degrees C

b)

120 degrees C

c)

140 degrees C

d)

160 degrees C

50.

Sublimation

a)

A

b)

B

c)

C

d)

F

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