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Atoms & The Periodic Table

Total questions: 31

Worksheet time: 40mins

Name
Class
Date
1.
Which is an electron?
a)

A

b)

B

c)

C

2.
Which is a neutron?
a)

A

b)

B

c)

C

3.
Which is a proton?
a)
A
b)
B
c)
C
4.
What is the number of protons that the element in this image contain?
a)

14

b)

7

c)

15

d)

18

5.
The particles that are found in the nucleus of an atom are
a)
neutrons and electrons
b)
electrons only
c)
protons and neutrons
d)
protons and electrons
6.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
7.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
8.
The first energy level can hold up to how many electrons?
a)
8
b)
4
c)
2
d)
5
9.
A horizontal row in the periodic table is called....
a)
Group
b)
Family
c)
Column
d)
Period
10.
What element is this model showing?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
11.
Most of the elements on the periodic table are classified as _____.
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Periods
12.
What gives an atom mass?
a)
Protons & electrons in the nucleus
b)
electrons in the cloud
c)
protons & neutrons in the nucleus
d)
Protons & electrons in the cloud
13.
If an atom has 24 protons and 24 electrons, what is the atomic number of this element?
a)
24
b)
48
c)
0
d)
42
14.
Beryllium has how many protons?
a)
4
b)
9.0122
c)
2
d)
13.0122
15.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
16.
What does an atom's group tell us?
a)
Number of protons
b)
Number of electrons
c)
Number of valence electrons
d)
Number of shells
17.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

18.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
19.
Sodium (Na) is found in group 
a)
1
b)
2
c)
3
d)
4
20.
Sodium (Na) is found in period 
a)
3
b)
2
c)
4
d)
1
21.
What does the 6 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
22.

The atomic number of Beryllium is 4. Its average atomic mass is 9.0122. How many neutrons does an atom of Beryllium have in its nucleus?

a)

4

b)

4.0122

c)

5

d)

6

23.

The atomic number of an element is the number of _______ it has.

a)

protons

b)

neutrons

c)

electrons

d)

protons and neutrons

24.

Which of the following best describes the three general groups of elements?

a)

solids, liquids, gas

b)

metals, nonmetals, gases

c)

metals, nonmetals, metalloids

d)

metals, metalloids, synthetics

25.
Which type of subatomic particles have the LEAST amount of mass?
a)
protons
b)
electrons
c)
neutrons
d)
nucleus
26.
If an atom has 24 protons and 24 electrons, what is the atomic number of this element?
a)
24
b)
48
c)
0
d)
42
27.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
28.
This subatomic particle always identifies the identity (name) of the element
a)
Neutron
b)
Electron
c)
Proton
d)
amu
29.
The sum of the protons and neutrons in the nucleus of an atom
a)
Atomic Number
b)
Compound
c)
Electrons
d)
Mass Number (also called Atomic Mass)
30.

If an element has 10 neutrons and I added 2 more, is that element still the same substance?

a)

No, adding neutrons changes the atom into an entirely different element

b)

Yes, it will still be the same substance. Adding neutrons doesn't change the atom into another element.

31.

How well do you feel you understand the lesson on atoms and the periodic table?

a)

I'm pretty much an expert

b)

I got this

c)

Meh, I'm so so

d)

This is hard

e)

Huh?

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