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Atoms and Molecules Vocabulary

Total questions: 43

Worksheet time: 22mins

Name
Class
Date
1.
A subatomic particle that has a positive electric charge
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
2.
A subatomic particle that orbits an atom's nucleus, has a negative charge, and has very little mass
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
3.
The smallest unit of an element that still has the properties of that element.
a)
Atom
b)
Adam
c)
Nucleus
d)
Element
4.
The center of an atom, usually made of protons and neutrons
a)
Nucleus
b)
Proton
c)
Atomic Number
d)
Isotope
5.
A subatomic particle that has the same mass as a proton but no electric charge
a)
Neutron
b)
Nucleus
c)
Nuclear
d)
Jimmy Neutron
6.
The number of protons in an atom
a)
Atomic Number
b)
Atomic Proton
c)
Atomic Neutron
d)
Atomic Mass
7.
A substance made up of only one kind of atom
a)
Element
b)
Elementary 
c)
Ellie
d)
Elephant
8.
A substance that conducts heat and electricity well and is malleable
a)
Metal
b)
Non-Metal
c)
Element
d)
Malleable
9.
A substance that does not conduct electricity and is not malleable
a)
Non-Metal
b)
Gold
c)
Metal
d)
Aluminum
10.
A table that shows the elements arranged by their atomic numbers
a)
Periodic Table
b)
Dining Room Table
c)
Wooden Table
d)
Occasional Table
11.
A substance made up of atoms of two or more elements that are chemically combined.
a)
Compound
b)
Element
c)
Atom
d)
Nucleus
12.
The temperature at which a substance changes from a solid to a liquid
a)
Melting Point
b)
Boiling Point
c)
1000 C
d)
2120 F
13.
The temperature at which a substance changes from a liquid to a gas.
a)
Boiling Point
b)
Melting Point
c)
Ballpoint Pen
d)
320 F
14.
A state of matter made up of charged atoms, uncharged atoms, and free electrons
a)
Plasma
b)
Molecule
c)
Atom
d)
Atomic
15.
Particles found within the atom, mainly protons, neutrons, and electrons.
a)
Subatomic Particles
b)
Submarine Particles
c)
Element
d)
Nucleus
16.
Atoms that have the same number of protons but different numbers of neutrons.
a)
Isotopes
b)
Neutron
c)
Proton
d)
Atomic Mass
17.
Easy to shape or bend
a)
Malleable
b)
Non-Metal
c)
Play Doh
d)
Lego
18.
A joining together
a)
Fusion
b)
Fission
c)
Frustration
d)
Furious
19.
Russian chemist who developed a periodic table of the chemical elements and predicted the discovery of several new elements (1834-1907)
a)
Dmitri Mendeleev
b)
Bill Nye
c)
Putin
d)
Boris 
20.
A change directly from the solid to the gaseous state without becoming liquid.
a)
Sublimation
b)
Submarine
c)
Subatomic 
d)
Molecule
21.

Which of the following is NOT a state of matter?

a)

plasma

b)

liquid

c)

gas

d)

fire

22.

A _______ is the temperature at which a substance changes from a solid to a liquid.

a)

melting point

b)

boiling point

c)

thermometer

d)

absolute zero

23.

The boiling point of water is _______C.

a)

0

b)

10

c)

100

d)

212

24.

Adding or removing enough _______ causes changes in state.

a)

energy

b)

water

c)

air

d)

hydrogen

25.

_________ is the process when a substance can change from a soliid directly to a gas without first becoming a liquid.

a)

Subzero

b)

Absolute Zero

c)

Below zero

d)

Sublimation

26.

_____________ have their own shape.

a)

Liquids

b)

Gases

c)

Solids

d)

Plasmas

27.

____ take the shape of the container they are in, but they may not fill it.

a)

Gases

b)

Solids

c)

Liquids

d)

Plasmas

28.

The molecules of ________ move apart and fill whatever container that is available.

a)

Liquids

b)

Gases

c)

Solids

d)

Plasmas

29.

In the ________ state, water molecules have more energy than in the solid state.

a)

liquid

b)

plasma

c)

solid

d)

gas

30.

Only great pressure can change the shape of a _________.

a)

liquid

b)

gas

c)

solid

31.

Plasma makes up _____% of all matter in the universe.

a)

9

b)

99

c)

100

d)

25

32.

The molecules in ice ______ move around much.

a)

do

b)

don't

33.

The temperature at which a substance becomes a gas is its ___________ point.

a)

melting

b)

boiling

c)

zero

d)

subzero

34.

How many atoms are in the molecule H2O?

a)

1

b)

2

c)

3

d)

4

35.

How many atoms are in one molecule of aspirin C9H8O4?

a)

9

b)

8

c)

4

d)

21

36.

Elements are rarely found in nature in their pure form.

a)

True

b)

False

37.

Compounds have the same properties as the elements that form them.

a)

True

b)

False

38.

Nitrogen and oxygen are the two elements that make up 99% of our air.

a)

True

b)

False

39.

Compounds can bond or hold together because they share _________.

a)

protons

b)

neutrons

c)

electrons

d)

nuclei

40.

The nucleus of every atom contains at least one ______.

a)

neutron

b)

proton

c)

electron

41.

Atoms that have the same number of protons but different numbers of neutrons are called _________.

a)

isotopes

b)

protons

c)

neutrons

d)

electrons

42.

If an atom has 80 protons, 78 neutrons and 80 electrons, what is its atomic number?

a)

80

b)

78

c)

160

d)

238

43.

____________ is the most abundant element in the Universe.

a)

Nitrogen

b)

Oxygen

c)

Hydrogen

d)

Helium

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