04.04 Using the Periodic Table Assignment
Mission Briefing: You are an Intergalactic CSI that investigates crime scenes between galaxies! There has been a nuclear explosion on another planet.
Your mission is to match the forensic evidence from the scene to our Earth’s Periodic Table. Let’s make sure that you have all the atomic information
that you will need!
Clue Review:
(Amu)
Part 1: Mission Preparation: Use the following word bank to complete the sentences accurately.
atomic mass
protons
column
electrons
atomic number
neutrons
row
11
12
A.
The _____________
B.
The atomic number can be used to calculate the number of _______________ and ________________ in an element.
C.
Elements found in the same __________________ have similar chemical properties.
D.
An element with an atomic number of 11 and an atomic mass of 23 will have _________ neutrons total.
23
________________ of an element is used to determine the number of neutrons.
Part 2: Mission Activated: Your Mission is to use the knowledge you have obtained to correctly match the Galactic Element Clues (fake
elements) to our Earth elements found in the Periodic Table below. Print and cut out each of the elements on the next two page. The blue elements are
the Alien’s fake elements and the orange elements are Earth’s real elements. Use the clues on each of the Alien fake elements to match it to the real
earth element. Once you have them matched, please type the alien’s element symbol (letter abbreviation) next to Earth’s element symbol in the
periodic table below. The clue in red below has already been matched for you. Notice how Galactic Element (fake element) Gs has been written next
to the real periodic element H in the periodic table. Use these examples to guide you on your mission!
Example:
Group 1
1
H/Gs
1.008
3
Li/
7.941
11
Na/So
22.989
19
K/
39.098
Gs
1
Lowest
atomic mass
H
Group 2
4
Be/
9.012
12
Mg/
24.305
20
Skip
Ca/
21 - 30
40.078
METALS
1.008
Group 13
5
B/
10.811
13
Al/Lm
26.981
31
Ga/
69.723
As you can see the alien element Gs is a
perfect match with the Earth element H,
therefore write Gs next to the H in the
periodic table.
Periodic Table
Group 14
Group 15
6
7
C/
N/At
12.010
14.006
14
15
Si/
P/
28.085
30.973
32
33
Ge/
As/
72.64
74.921
METALLOIDS
Group 16
Group 17
8
O/
15.999
16
S/
32.065
34
Se/
78.96
9
F/
18.998
17
Cl/Ms
35.453
35
Br/
79.904
NONMETALS
Group 18
2
He/
4.003
10
Ne/
20.179
18
Ar/
39.948
36
Kr/
83.8
Directions: Print and cut out each of the following Alien elements and Earth elements. Use your knowledge of the atomic theory and periodic table to
match one alien element to one earth element. Once complete take a photo of your work and submit to your instructor for credit. Be sure to include
page 1 of this activity as well.
Fireworkium
Toothium
Floatium
Breathium
Lightium
Fw
T
Fl
Bt
Lg
This element has 15 protons
and 15 electrons in its
neutral atom.
This is a nonmetal with an
average atomic mass number
close to 19.
This is a gas that the aliens
often use to fill balloons and
blimps. It contains two
protons in its nucleus.
This element is a nonmetal
and has one less proton than
an atom of Toothium and
has an atomic mass close to
16 amu.
This is a gas that does not
react with other elements. It
glows when it is heated in a
lamp or vacuum tube. It
contains one more proton in
its nucleus than Toothium.
Rottoneggium
Nobelium
Liquidium
Supermanium
Bonsium
Re
Nb
Lq
Sp
Bo
This nonmetal and has the
second largest atomic mass
number on the alien periodic
table.
This element has the largest
atomic mass unit on the
alien’s periodic table at close
to 84 amu.
This element is important for
bone strength, both for aliens
and earthlings. It is a metal
in Group 2 of the periodic
table and has 20 neutrons.
This is a nonmetal with one
less electron than
Mustarium. It has a total of
16 electrons in its nucleus.
This gas is located directly
below Lightium on the
periodic table and has an
atomic mass close to 40
amu with 18 protons.
Organium
Killum
Universium
Semicoductium
Computerium
Or
Ki
Uv
Sc
Co
This element makes up
diamonds, which are not as
valuable in other places in the
universe as they are on Earth.
It contains six protons in the
nucleus of its atom.
This is a notoriously
poisonous metalloid with an
atomic mass close to 75 amu.
This element is the metalloid
with the lowest mass. It has
one less proton than
Organium.
This is an element that the
aliens use in their electronics,
stun guns, and in their
communication devices
because it is a semiconductor. Significantly
greater than the mass of
Semicoductium and has 14
electrons.
Ikium
Spriklium
Alloyium
Metium
Bananium
Ik
Sk
Am
Me
Bn
An atom of this element may
have an actual mass of 70
amu with 39 neutrons.
This is a relatively rare metal
that is often used as a
hardening agent in metal
alloys/mixtures. It is the
second lightest metal on the
periodic table.
This is a very reactive metal
with the lowest mass on the
entire periodic table.
This element has similar
chemical properties to
Softium and Metium, but is
heavier than both.
This is a semi-conductor
that is found below
Computerium on the
periodic table. The element
has 32 protons and 41
neutrons.
Abundium
A
This is the ninth most
abundant element in the
universe. It is a metal with
12 protons in its nucleus.
This is a heavy nonmetal, a
pretty large atomic mass
number and chemical
properties similar to
Rottoneggium and
Breathium.
2
3
4
5
6
He
Li
Be
B
C
4.003
7.941
9.012
10.811
12.010
8
9
10
12
14
O
F
Ne
Mg
Si
15.99
18.998
20.179
24.305
28.085
15
16
18
19
20
P
S
Ar
K
Ca
30.973
32.065
39.948
39.098
40.078
31
32
33
34
35
Ga
Ge
As
Se
Br
69.723
72.64
74.921
78.96
79.904
36
Kr
83.8