NAME: ____________________________
Fill in the missing information about each element using the periodic table provided.
Element
Name
Element Atomic
Symbol Number
Calcium
Krypton
Atomic
Mass
Protons
40.078
20
Kr
H
Sn
36
1
118.71
50
Neutrons Group
Name
Number of
Valence
Electrons
48
8
0
1
79
4
NAME: ____________________________
Please work individually to answer the following questions.
1) Which element can be identified as having 16 protons?
a) Neon
b) Oxygen
c) Phosphorus
d) Sulfur
2) Which of the following has 9 protons, 10 neutrons, and 9 electrons?
a) Fluorine
b) Neon
c) Nitrogen
d) Potassium
3) Which element has 8 valence electrons and tends not to react with
other elements?
a) Argon
b) Sodium
c) Oxygen
d) Aluminum
4) Which group on the periodic table most likely contains an element
that is highly reactive, a good conductor, and malleable?
a) Group 1
b) Group 7
c) Group 13
d) Group 18
5) Potassium has properties most similar to which of these elements?
a) Lithium
b) Beryllium
c) Calcium
d) Chromium
6) Which of the following statements best describes titanium?
a) A titanium atom has 48 electrons in its energy levels.
b) A titanium atom has 22 negative charges in its nucleus.
c) A titanium atom has more subatomic particles than a calcium
atom.
d) A titanium atom has more subatomic particles than an atom of
chromium.
7) A student hypothesizes that potassium has different chemical
properties from calcium. Which of the following statements best
supports the hypothesis?
a) Potassium has more mass than calcium
b) Potassium is a nonmetal, and calcium is a metal
c) Potassium and calcium are members of the same group
d) Potassium and calcium have different numbers of valence
electrons
8) Elements on the periodic table are arranged based upon their
properties. Which of the following best identifies the period and
group of the elements listed?
a) Beryllium
Group 2
Period 1
Aluminum
Group 13
Period 3
Sodium
Group 1
Period 3
b) Beryllium
Group 1
Period 2
Aluminum
Group 3
Period 13
Sodium
Group 1
Period 3
c) Beryllium
Group 2
Period 2
Aluminum
Group 3
Period 13
Sodium
Group 3
Period 1
d) Beryllium
Group 2
Period 2
Aluminum
Group 13
Period 3
Sodium
Group 1
Period 3