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Atoms and Matter

Total questions: 39

Worksheet time: 29mins

Name
Class
Date
1.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
2.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
3.
The smallest particle of any particular type of matter is known by which of the following terms?
a)
Compound
b)
Atom
c)
Chemical
d)
Element
4.
If an atom has 3 electrons, how many protons does it have?
a)
1
b)
2
c)
4
d)
3
5.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus 
6.

What is the center of the atom called?

a)

nucleus

b)

electron cloud

c)

energy level

d)

neutron

7.

What two sub-atomic particles belong in the nucleus of an atom?

a)

electrons and protons

b)

protons and neutrons

c)

electrons and neutrons

8.

What type of charge does a neutron have?

a)

negative

b)

positive

c)

no charge/neutral

9.

Where are electrons located in an element?

a)

nucleus

b)

energy levels

10.

What is the mass number of this Carbon atom?

a)

8

b)

12

c)

6

d)

15

11.

The number 18 represents the

a)

Atomic number

b)

Neutrons

c)

Element Name

d)

Element symbol

12.

The number of protons in the nucleus of an atom is called the --

a)

atom

b)

proton

c)

atomic mass number

d)

atomic number

13.

A subatomic particle that has a negative charge is called --

a)

a proton

b)

a neutron

c)

an electron

d)

the nucleus

14.

A neutron is ---

a)

a subatomic particle with a negative charge.

b)

a subatomic particle with a neutral charge.

c)

the center of the atom where subatomic particles are found.

d)

a subatomic particle with a positive charge.

15.

An arrangement of elements in order of their atomic numbers is called the _________________.

a)

Atomic Number

b)

Electron Cloud

c)

Periodic Table

d)

Nucleus

16.

A subatomic particle with a positive charge is called --

a)

a proton

b)

a neutron

c)

an electron

d)

a nucleus

17.

Which subatomic particles are the same number? Check all that apply.

a)

a proton

b)

a neutron

c)

an element

d)

an electron

18.

A region around the nucleus of an atom where electrons are found.

a)

Electron Nucleus

b)

Electron Cloud

c)

Cloud of Electrons

d)

Electron

19.

An atom's central region, which is made up of protons and neutrons is called--

a)

Electron Cloud

b)

Nucleolus

c)

Nucleus

d)

Atomic Number

20.

Which subatomic particle(s) are found in the nucleus of the atom? Choose all that apply.

a)

proton

b)

neutron

c)

electron

21.

Which subatomic particle(s) are found in the electron cloud of an atom? Choose all that apply.

a)

proton

b)

neutron

c)

electron

22.

What is the label A?

a)

protons

b)

neutrons

c)

electrons

d)

nucleus

23.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
24.
Which is an electron?
a)
A
b)
B
c)
C
25.

Identifies the number of protons in an atoms nucleus.

a)

Electron Cloud

b)

Atomic Theory

c)

Atomic Number

d)

Mass Number

26.

The total number of protons and neutrons in the nucleus of an atom

a)

Atomic Number

b)

Mass Number

c)

Atomic Theory

d)

Electron Cloud

27.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
28.

How many electrons are in this element?

a)

39

b)

19

c)

20

d)

21

29.

Which element does this model represent?

a)

Nitrogen

b)

Hydrogen

c)

Carbon

d)

Boron

30.

An atom of a certain element has 11 electrons, and a mass number of 23. This element is very reactive in room temperature. How many neutrons are in this atom?

a)

11

b)

12

c)

33

d)

23

31.
 What is the mass number of this element?
a)
5
b)
27
c)
32
d)
59
32.
What number indicates an electron?
a)
1
b)
2
c)
3
d)
4
33.
The particles with no charge in an atom are the _______.
a)
electrons
b)
neutrons
c)
protons
d)
protons and neutrons
34.

What is the definition of matter?

a)

Anything that has mass and takes up space

b)

A substance that is liquid, solid, or gas

c)

Anything that is pure

d)

Anything that you can see or hold

35.

What happens when you heat a solid?

a)

It turns into a plasma

b)

It disappears

c)

It turns into a liquid

d)

It remains a solid

36.

The amount of space accupied by a substance is called?

a)

Density

b)

MAtter

c)

Volume

d)

Space

37.

Which has particles representing a liquid?

a)
b)
c)
38.

Which beaker has particles representing a solid?

a)
b)
c)
39.

Which of the following correctly identifies the charge of each subatomic particle?

a)

Proton- Positive; Neutron- No charge; Electron- Negative

b)

Proton- Positive; Neutron- Negative; Electron- No charge

c)

Proton- Negative; Neutron- No charge; Electron- Positive

d)

All are positively charged.

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