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15
×
What is the atomic mass of lead?
207.2
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15
×
The center of an atom is called the __________
nucleus
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15
×
What element is most similar to Barium (Ba)?
Cesium (Cs)
Boron (B)
Tantalum (Ta)
Magnesium (Mg)
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15
×
What must be true about the element "X"?
It will have a mass greater than 30 amu
It will have 28 protons
It will have 6 electrons
It will have chemical properties similar to C
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15
×
Every horizontal row on the periodic table is called a ________
period
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lifesaver
Give 25 points!
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rocket
Go to first place!
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rocket
Go to first place!
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baam
Lose 10 points!
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15
×
Where are protons and neutrons found?
Nucleus
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15
×
How many neutrons are in an atom of gold?
118
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15
×
If an atom has an atomic number of 16, how many protons does it have?
16
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15
×
A neutral atom of lead has 82 protons, how many electrons does it have?
82
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eraser
Reset score!
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×
shark
Other team loses 15 points!
Okay!
×
rocket
Go to first place!
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banana
Go to last place!
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heart
Other team wins 10 points!
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shark
Other team loses 25 points!
Okay!
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gift
Win 5 points!
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thief
Give points!
5
10
15
20
25
15
×
Where are electrons found?
Electron cloud
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15
×
Positively charged particle in an atom
Proton
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15
×
Most of the mass in an atom is concentrated in the
Protons
Nucleus
Electron Cloud
Empty space
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15
×
What type of charge does a neutron have?
Neutral/no charge
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