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JML Atoms and Elements Review

Total questions: 30

Worksheet time: 19mins

Name
Class
Date
1.
What does the atomic number tell us?
a)
number of protons and usually the number of electrons
b)
number of neutrons
c)
the atomic mass
2.

One or two letter abbreviation used to represent an element is called a(n) ________

a)

chemical symbol

b)

element sign

c)

atomic number

d)

molecule

3.
Particles in an atom's nucleus that are neutral and have no charge are 
a)
protons.
b)
electrons.
c)
neutrons.
4.
An atom with atomic number 6 would have how many protons?
a)
6
b)
12
c)
3
d)
cannot be determined 
5.

What is the atomic number of an element with three protons?

a)

2

b)

1

c)

3

d)

6

6.
A negatively charged particle that moves around the nucleus is a(n)
a)
proton
b)
neutron
c)
electron
d)
quark
7.
Most of the mass in an atom is found in the
a)
neutrons
b)
nucleus
c)
protons
d)
electron cloud
8.
What charge does a proton have?
a)
Negative
b)
Positive
c)
Neutral
9.
An element's identity is determined by the number of
a)
electrons
b)
protons
c)
neutrons
10.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
31
11.

Which atom has the most protons? Use your Periodic Table of Elements!

a)

Hydrogen

b)

Iron

c)

Lead

d)

Mercury

12.
A neutral atom of the element sodium has 11 protons and ____ electrons.
a)
22
b)
23
c)
12
d)
11
13.

Which of the following identifies the number and location of protons in a Sulfur (S) atom ? Pick TWO answers.

a)

Located in the nucleus

b)

16 protons

c)

32 protons

d)

Located outside the nucleus

14.
An atom has 54 protons, 54 electrons, and 77 neutrons. What is the atomic number of the atom?
a)
54
b)
77
c)
131
d)
23
15.
What is the smallest unit of matter?
a)
the atom
b)
an element
c)
a proton
d)
an electron
16.
How do you find the number of neutrons in an atom?
a)
It is also the atomic number
b)
It is also the atomic mass
c)
Add the atomic mass and the atomic number
d)
Subtract the number of protons from the atomic mass
17.

Which TWO particles make up the nucleus of an atom?

a)

protons

b)

neutrons

c)

electrons

d)

quarks

18.

How many elements are on the periodic table?

a)

55

b)

118

c)

too many to count

d)

10

19.
An element is a
a)
pure substance made of one type of atom
b)
compound
c)
substance made of different types of atoms
20.
Electrons are located 
a)
in the nucleus
b)
outside the nucleus
21.
What is the atomic mass for Sodium (Na)?
a)
11
b)
23
c)
12
d)
22
22.

What is the element symbol for Potassium?

a)

K

b)

Pt

c)

Ba Na Na

d)

PM

23.

How is the Periodic Table of Elements arranged?

a)

by atomic number

b)

by atomic mass

c)

alphabetical order

d)

by color of the element

24.

What are the 3 particles that make-up the atom?

a)

protons, neutrons, and isotopes

b)

neutrons, isotopes, and electrons

c)

positives, negatives, and electrons

d)

protons, neutrons, and electrons

25.
What is the mass number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
26.

Electrons are ___________.

a)

Extremely small even in comparison to protons.

b)

part of the nucleus.

c)

Super Positive, like cheerleaders!

d)

Very large in size.

27.

Anything that has mass and takes up space is called

a)

weight

b)

volume

c)

matter

d)

density

28.

Which particle has a similar mass to a proton of 1 amu?

a)

Electron

b)

Neutron

c)

Photon

d)

Marble

29.

Which answer is the smallest?

a)

your fingernail

b)

a planet

c)

the tip of your pencil

d)

an atom of Silver

30.

Which element has the chemical symbol Au?

a)

Iron

b)

Titanium

c)

Gold

d)

Flourine

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