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15
×
Which periodic table group are the alkali metals?
1
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15
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Which group of the periodic table are the Halogens?
7
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15
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Which model of the atom is this?
Plum pudding
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15
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Some alpha particles were deflected by the gold atoms, what did that tell us about the atom?
The atom has a positive nucleus
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15
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Why are the alkali metals so reactive?
They only have one electron in their outer shell
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15
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Would the separating technique chromatography work with an insoluble mixture?
No, it only works with soluble mixtures
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eraser
Reset score!
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seesaw
Swap points!
Okay!
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fairy
Take points!
5
10
15
20
25
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baam
Lose 20 points!
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15
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The flame test experiment provides evidence that an atom's electrons are in shells [True / False]
True
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15
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Which model of the atom is this?
Rutherford or Nuclear model of the atom
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15
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Why are the noble gases so unreactive?
They have a full outer shell
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monster
Reset all scores!
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star
Double points!
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fairy
Take points!
5
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25
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lifesaver
Give 10 points!
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thief
Give points!
5
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25
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gift
Win 25 points!
Okay!
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rocket
Go to first place!
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baam
Lose 20 points!
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15
×
How many electrons can fit in an atom's third shell?
8
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15
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Which separation technique would you use to separate solids from liquids?
Filtration
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15
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Define a compound.
two or more elements chemically bonded together
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15
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What is the charge on an electron?
-1
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