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20
×
What is wrong with this diagram?
Helium will never have an octet. Stable 1st energy level
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15
×
Which halogen is a solid at room temperature?
iodine
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monster
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star
Double points!
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fairy
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5
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25
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banana
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15
×
How many neutrons does Astatine-211 have?
126
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15
×
Write the nuclide symbol of an atomic that has 17 protons, 18 neutrons, 18 electrons
35 Cl 1-
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eraser
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gift
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fairy
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5
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25
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baam
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15
×
Which property is described by an element's atom's ability to attract electrons?
electronegativity
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banana
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fairy
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shark
Other team loses 20 points!
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thief
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15
×
How many neutrons are in the most common isotope of gold?
118
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15
×
What element has 0 neutrons in its most common isotope?
Hydrogen
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15
×
Which element has the smallest atomic radius?
Helium
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15
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How many protons, neutron and electrons in calcium-42 with a 2+ charge? (p+,n,e-)
20,22,18
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15
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Which of the noble gases is slightly electronegative and will form compounds?
Xenon
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15
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Identify the # of each subatomic particle of Boron-11 with an +3 ion. (p,n,e)
5,6,2
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15
×
How many neutrons are in iron-57?
31
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15
×
Which is the most electronegative element?
fluorine
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