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Worksheets

Matter and Atoms

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

Matter is made up of atoms which:

a)

Can easily be seen

b)

have no weight

c)

have mass and volume

d)

don't take up any space

2.

What is the smallest bit of an element you can have that has all the properties of that element?

a)

a molecule

b)

a compound

c)

an element

d)

an atom

3.

Subatomic particle with a negative charge

a)

proton

b)

electron

c)

neutron

d)

nucleus

4.

Subatomic particle with no charge

a)

proton

b)

neutron

c)

electron

d)

nucleus

5.

Subatomic particle with a positive charge

a)

proton

b)

neutron

c)

electron

d)

isotope

6.

Anything that has mass and takes up space

a)

atom

b)

element

c)

matter

d)

molecule

7.

The number of protons in the nucleus of an atom

a)

atomic mass

b)

atomic number

c)

isotope

d)

nucleus

8.

The nucleus of an atom consist of:

a)

electrons

b)

protons and electrons

c)

protons and neutrons

d)

neutrons and electrons

9.

How many protons does this atom have?

a)

4

b)

5

c)

9

d)

13

10.
Pure substances—such as nickel, hydrogen, and helium—that make up all kinds of matter.
a)
element
b)
atom
c)
proton
d)
neutron
11.

What is a substance?

a)

A matter with a composition that is always the same.

b)

Anything that has mass.

c)

Matter that can vary.

d)

Something that is uncut.

12.

A molecule is defined as

a)

things that have no mass or matter.

b)

two or more atoms that are held together by chemical bonds and act as a unit.

c)

an arrangement of particles that is the same throughout the mixture.

d)

anything that has mass and takes up space.

13.

What does the number 11 stand for in the Sodium block?

a)

atomic number

b)

atomic weight

c)

Stranger Things

14.

What does the K stand for in the Potassium block?

a)

Atomic number

b)

Atomic weight

c)

Symbol for the atom

15.

What does the 40.08 stand for in the Calcium block?

a)

Atomic number

b)

Atomic weight

c)

Atomic symbol

16.

The central region of an atom where its neutrons and protons are is its

a)

nucleus

b)

electron cloud

c)

core

d)

center

17.

An atom with atomic number 6 would have how many protons

a)

6

b)

12

c)

3

d)

cannot be determined

18.

True or False: Neutrons have a negative charge

a)

True

b)

False

19.

What is the atomic number for an element with 3 protons?

a)

2

b)

1

c)

3

d)

6

20.

Protons and electrons balance the charge of an atom.

a)

True

b)

False

21.

True/False: Compounds are made of two or more different elements.

a)

True

b)

False

22.

An atoms overall charge is

a)

positive

b)

depends on its mood

c)

neutral

d)

negative

23.
If an atom has 3 electrons, how many protons does it have?
a)
1
b)
2
c)
4
d)
3
24.
An atom with an unequal number of protons and electrons is said to have (a) ___.
a)
no charge
b)
balance
c)
charge
d)
unbalance
25.

Matter can be classified as two different things what are they?

a)

Mixtures and substances.

b)

Substances and elements.

c)

Elements and mixtures.

d)

Matter and atoms.