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Alien Periodic Table
Problem:
Imagine that inhabitants of another planet send a message to Earth that contains
information about 30 elements. However, the message contains different names
and symbols for these elements than those used on Earth. Your job is to use the
information below to place each element in the correct spot on the alien periodic
table. Can you tell which elements on the human periodic table these “alien”
names represent?
Alien Elements
The noble gases are bombal (Bo), The lightest element of all is called pfsst
wobble (Wo), jeptum (J), and logon (L). (Pf). The heaviest element in the group of
Among these gases, wobble has the 30 elements is eldorado (El). The most
greatest atomic mass and bombal the chemically active nonmetal is apstrom.
least. Logon is lighter than jeptum. Kratt reacts with byyou to form table salt.
The element doggone (D) has only 4
The most reactive group of metals are protons in its atoms.
xtalt (X), byyou (By), chow (Ch), and
quackzil (Q). Of these metals, chow has Floxxit (Fx) is important in the chemistry
the lowest atomic mass. Quackzil is in the of life. It forms compounds made of long
same period as wobble. chains of atoms. Rhaatrap (R) and
doadeer (Do) are metals in the fourth
Apstrom (A), vulcania (V), and kratt period, but
(Kt) rhaatrap is less reactive than doadeer.
are nonmetals whose atoms typically Magnificon (M), goldy (G), and sississ
gain or share one electron. Vulcania is in are all members of Group 15. Goldy has
the same period as quackzil and wobble. fewer electrons than magnificon.
The metalloids are ernst (E), highho Urrp (Up), oz (Oz), and nuutye (Nu) all
(Hi), terriblum (T), and sississ (Ss). gain 2 electrons when they react. Nuutye
Sississ is the metalloid with the greatest is found as a diatomic molecule and has
atomic mass. Ernst is the metalloid with the same properties as a gas found in
the lowest atomic mass. Highho and Earth’s atmosphere. Oz has a lower
terriblum are in Group 14. Terriblum has atomic number than urrp.
more protons than highho. Yazzer (Yz)
touches the zigzag line, but it’s a metal, The element anatom (An) has atoms
not a metalloid. with a total of 49 electrons. Zapper (Z)
and pie (Pi) lose two electrons when they
react. Zapper is used to make lightweight
alloys.
Name: _______________________________________________ Date: ____________________________ Core: _________
Alien Periodic Table
Write your suggestions for the proper placement of the alien elements in the
blank periodic table below. Then answer the questions based on your answers.
1 18
1
2 13 14 15 16 17
2
3
4
5
1. List the Earth names for the 30 alien elements in order of atomic number.
2. Why did you need more than one clue to place most of the elements?
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3. Which is the most reactive alien metal? _______________________
How do you know? __________________________________________________________________
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4. Which is the most reactive alien nonmetal? _______________________
How do you know? __________________________________________________________________
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5. Why could you use clues about atomic mass to place elements, even though the table
is now based on atomic numbers?
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