WorksheetsReview 2 Atoms and the Periodic Table
Total questions: 55
Worksheet time: 1hrs 19mins
Name
Class
Date
1.
What is the difference between the number of electrons in calcium, Ca and the number of electrons in kryton, Kr?
a)
20
b)
36
c)
16
d)
56
2.
How many protons, neutrons and electrons are there in an atom of mercury, Hg with a mass of 201?
a)
80 protons 80 neutrons, 80 electrons
b)
80 protons, 121 neutrons, 80 electrons
c)
121 protons, 80 neutrons, 80 electrons
d)
121 protons, 80 neutrons, 121 electrons
3.
An atom of a certain element has 38 protons, 38 electrons and a mass of 88 and is an alkali earth metal. How many neutrons does it have in the nucleus of the atom?
a)
38
b)
86
c)
50
d)
146
4.
What type of particles are found in the cloud surrounding the nucleus?
a)
positively charged particles
b)
particles with no charge
c)
negatively charged particles
d)
both positive and negatively charged particles
5.
what is the mass number of an atom with 30 protons and 35 neutrons?
a)
30
b)
65
c)
60
d)
35
6.
what is the name of the element with 50 electrons in the electron cloud?
a)
Tin
b)
Iron
c)
Phosphorus
d)
Lead
7.
Lead has a mass number of 207, how many protons, neutrons and electrons does it have?
a)
82 protons, 207 neutrons, 125 electrons
b)
82 protons, 125 neutrons, 125 electrons
c)
82 protons, 125 neutrons, 207 electrons
d)
82 protons, 125 neutrons, 82 electrons
8.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
9.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
10.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
11.
The first energy level can hold up to how many electrons?
a)
8
b)
4
c)
2
d)
5
12.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
13.
An atoms overall charge is
a)
positive
b)
depends on its mood
c)
neutral
d)
negative
14.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
15.
How many neutron are in the atom "K"?
a)
7
b)
21
c)
39
d)
20
16.
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
17.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
18.
Most of the mass in an atom is concentrated in the...
a)
electrons
b)
nucleus
c)
protons
d)
empty space
19.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
20.
What element contains 26 protons?
a)
Iron
b)
Sodium
c)
Aluminum
d)
Helium
21.
What is the charge of a neutron?
a)
+1
b)
0
c)
-1
22.
What is the mass of a neutron?
a)
0 amu
b)
1 amu
c)
2 amu
23.
Iron can have a 3+ charge. How many electrons?
a)
26
b)
23
c)
29
d)
0
24.
If Sulfur has a -2 charge, how many electrons are there?
a)
16
b)
14
c)
12
d)
18
25.
If Iodine has a -1 charge, how many electrons are there?
a)
52
b)
54
c)
53
d)
126.9
26.
How many electrons does Mg 2+ charge?
a)
10
b)
12
c)
8
d)
24
27.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
28.
Valence electrons are:
a)
Electrons farthest away from the nucleus
b)
Electrons closest to the nucleus
c)
Electrons that just come and go - they don't stay with the atom
29.
What determines an elements identity?
a)
electrons
b)
periodic table
c)
protons
d)
mass
30.
How many neutrons are in Phosphorus (P) ?
a)
15
b)
31
c)
16
d)
14
31.
How many electrons are in neutral Manganese (Mn) ?
a)
12
b)
25
c)
55
d)
30
32.
How many protons are in Boron (B) ?
a)
3
b)
5
c)
10
d)
11
33.
Which of the following has a full valence shell?
a)
Oxygen
b)
Neon
c)
Barium
d)
Carbon
34.
How many electrons should Lithium have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4
35.
How many electrons do atoms need to be stable?
a)
1
b)
2
c)
6
d)
8
36.
The atoms along the staircase are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
37.
Which element is not a metal?
a)
P
b)
Re
c)
Au
d)
Fe
38.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
39.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
40.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
41.
Who am I?
HINT: energy level and ve
HINT: energy level and ve
a)
Oxygen
b)
Boron
c)
Neon
d)
Nitrogen
42.
CO2
a)
Element
b)
Compound
43.
H2
a)
Element
b)
Compound
44.
H2O
a)
Element
b)
Compound
45.
Ca23
a)
Element
b)
Compound
46.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
47.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
48.
This model represents what chemical formula?
a)
N4H
b)
NH
c)
N2H2
d)
NH4
49.
The picture is an example of what type of substance?
a)
A Mixture of Two Elements
b)
A Molecule
c)
An Element
d)
A Compound
50.
The picture featured is an example of what?
a)
A Mixture of a Compound and an Element
b)
A Mixture of Two Compounds
c)
A Compound
d)
A Mixture of Two Elements
51.
This image is an example of what?
a)
Compound
b)
A Mixture of Two Elements
c)
A Mixture of Two Compounds
d)
Element
52.
What is the mass of an atom with 26 protons and 30 neutrons?
a)
26
b)
30
c)
56
d)
4
53.
How many neutrons are in Cr which has a mass of 52 and 24 electrons?
a)
24
b)
28
c)
52
d)
76
54.
How many electrons are in an atom that has a mass number of 207 and it has 125 neutrons?
a)
82
b)
125
c)
207
d)
53
55.
Name the element that has a mass of 75.
a)
Re
b)
As
c)
Au
d)
Cl
100 %
