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WorksheetsThe Periodic Table
Total questions: 25
Worksheet time: 50mins
Name
Class
Date
1.
Which element in the Alkaline Earth Metal family has the greatest atomic mass?
a)
Lithium
b)
Calcium
c)
Helium
d)
Barium
2.
Which of these characteristics for the elements sodium, mercury ,and oxygen have in common under all conditions?
a)
They are all made up of atoms
b)
They all have the same atomic mass
c)
They are all nonmetals
d)
They all have the same number of electrons
3.
Which elements share the most similar chemical properties?
a)
Chlorine (CL) & Argon (Ar)
b)
Hydrogen (H) & Helium (He)
c)
Boron (B) & Thalium (Ti)
d)
Potassium (K) & Calcium (Ca)
4.
How many protons does Rb-90 have?
a)
37
b)
45
c)
85.47
d)
90
5.
Which of the following is the basis for arranging the elements in the modern periodic table?
a)
alphabetical order
b)
mass of atoms
c)
number of protons
d)
date of discovery
6.
What do elements in the same column have in common?
a)
similar chemical properties
b)
same number of protons
c)
same atomic masses
d)
same size of their atoms
7.
How many electron clouds does Tungsten (W) have?
a)
4
b)
5
c)
6
d)
7
8.
Which family is considered moderately reactive?
a)
metals
b)
metalloids
c)
boron
d)
transitional metals
9.
What element is a transitional metal?
a)
Hydrogen (H)
b)
Iron (Fe)
c)
Aluminum (Al)
d)
Arsenic (As)
10.
What are valence electrons?
a)
They are equal to the number of protons
b)
They are next to the A above the periodic table.
c)
They are part of the atomic mass
d)
They are the electrons in the outer cloud of an atom.
11.
How many neutrons does Ag-94 have?
a)
47
b)
53
c)
100
d)
107
12.
Which of the following elements has the largest atomic mass from the table?
a)
1
b)
2
c)
3
d)
4
13.
Why do different isotopes of the same element exist?
a)
The number of electrons in an element can change, thus changing the atomic mass.
b)
The number of protons in an element can change, thus changing the atomic mass.
c)
The number of neutrons in an element can change, thus changing the atomic mass.
d)
An isotope is an element with an atomic mass.
14.
What is the atomic mass of Lithium, if it has 4 neutrons?
a)
3
b)
6
c)
7
d)
9
15.
What do we know about characteristics of Arsenic (As) compared to Phosphorus (P)?
a)
They are both in the same family?
b)
Arsenic is shiny, and Phosphorus is dull.
c)
Arsenic is a semi-conductor, and Phosphorus is an insulator.
d)
Arsenic is pliable, and Phosphorus is brittle.
16.
How many valence electrons does Selenium-78 (Se) have?
a)
4
b)
6
c)
16
d)
34
17.
Who is responsible for the order of the periodic table?
a)
Einstein
b)
Currie
c)
Mendeleev
d)
Rutherford
18.
In a neutral element the number of ________ is equal to the number of protons.
a)
electrons
b)
neutrons
c)
atoms
d)
particles
19.
What particle has a neutral charge?
a)
proton
b)
electron
c)
neutron
d)
nucleus
20.
What is the atomic number of this element?
a)
35
b)
17
c)
18
d)
Not enough information to tell
21.
What is the chemical symbol of this element?
a)
Argon
b)
Chlorine
c)
Ar
d)
Cl
22.
What number would accurately fill in the missing information?
a)
23
b)
24
c)
28
d)
51
23.
What number would accurately fill in the missing information?
a)
Li
b)
Be
c)
B
d)
Na
24.
What number would accurately fill in the missing information?
a)
13
b)
14
c)
26
d)
27
25.
2 part question:
1. What determines the reactivity of an element?
2. What would Astatine want to do to change its reactivity?
1. What determines the reactivity of an element?
2. What would Astatine want to do to change its reactivity?
a)
1. The number of electrons in the nucleus.
2. Gain an electron.
2. Gain an electron.
b)
1. The number of electrons in the nucleus.
2. Lose an electron.
2. Lose an electron.
c)
1. The number of electrons in the outermost shell.
2. Gain an electron.
2. Gain an electron.
d)
1. The number of electrons in the outermost shell.
2. Lose an electron.
2. Lose an electron.
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