ALIEN PERIODIC TABLE
Use the following guidelines of physical and chemical properties
of 30 alien elements in their appropriate place on the periodic
table. Use what you know about the periodic table on earth to
place them. Write the atomic symbol in the square. Use your
books/material to review placement of families.
a. The Noble gases are bombal (Bo), wobble (Wo), jeptum (J) and logon
(L). Among these gases, wobble has the greatest atomic mass and
bombal the least. Logon is lighter than jeptum.
b. The most reactive group of metals are xtalt (X), byyou (By), chow
(Ch) and quackzil (Q). Of these metals, chow has the lowest atomic
mass. Quackzil is in the same period as wobble and byyou has less
protons than xtalt.
c. Apstron (A), vulcania (V) and kratt (Kt) are non metals whose atoms
typically gain or share one electron. They are most similar to the
Noble gases. Vulcania (V) is in the same period as quackzil(Q) and
wobble (Wo). Kratt (Kt) has more atomic mass than apstrom (A).
d. The metalloids are Ernst (E), highho (Hi), terriblum (T) and sississ
(Ss). Sissis is the metalloid with the greatest atomic mass. Ernst is
the metalloid with the lowest atomic mass. Highho and terriblum are
in Group 14. Highho is in the same period as byyou.
e. Yazzer (Yz) touches the zigzag line, but it’s a metal, not a metalloid.
f. The lightest element of all is called pfsst (Pf) and the heaviest element
on the planet is Eldorado (El).
g. The element doggone (D) has only 4 protons in its nucleus.
h. Floxxit (Fx) is important in the chemistry of life and forms
compounds made of long chains of atoms.
i. Rhaatrap (R) and doadeer (Do) are metals in the fourth period, but
rhaatrap is less reactive than doadeer.
j. Magnificaon (M), goldy (G) and sississ are all members of Group 15.
Goldy has fewer total electrons than magnificon.
k. Nuutye (Nu) is found as a diatomic molecule and has the same
properties as a gas found in Earth’s atmosphere that is essential to life.
Oz (Oz) has a lower atomic number than urrp (Up). They all gain 2
electrons when they react.
l. The element anatom (An) has atoms that contain 49 electrons.
m. Zapper (Z) is in the same period as Highho
n. Pi (Pi) is an alkaline metal that has greater mass than zapper.
Name _______________________________________
Class ______
Answer the following questions.
1. Give at least three characteristics of how are the elements within a column similar?
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2. Give at least three characteristics of how are the elements within a column different?
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3. Explain the difference in atomic masses among the elements in Period 2 and those in
Period 3. ________________________________________________________________
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4. Where are metals placed in the periodic table? ________________________________
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5. Where are non-metals placed in the periodic table? ____________________________
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6. What can you tell about the element’s reactivity as you move from left to right across
the periodic table._________________________________________________________
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7. Which group of elements is not included in the alien periodic table? _______________
8. Do you think that it is likely that an alien planet would lack these elements? Explain.
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