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15
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Which of the following IS NOT a periodic trend: bond enthalpy, atomic radius or effective nuclear charge?
bond enthalpy
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15
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Which is the most reactive group of non-metals?
The Halogens
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15
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Is the sodium cation (Na+) radius bigger or smaller than the sodium neutral atom radius?
smaller
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15
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What is the effective nuclear charge of sodium (Z = 11)?
+1
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15
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Which of the two, metals or non-metals, tend to gain electrons to form negative ions (anions) instead of losing electrons to form positive ions?
Non-metals
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banana
Go to last place!
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×
shark
Other team loses 25 points!
Okay!
×
rocket
Go to first place!
Okay!
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banana
Go to last place!
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15
×
Is MgO a basic or acidic oxide?
basic
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heart
Other team wins 25 points!
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seesaw
Swap points!
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gift
Win 15 points!
Okay!
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thief
Give points!
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25
15
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Mg2+ and O2- are isoelectronic. What does it mean?
That they have the same number os electrons
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15
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Which is the the most reactive group of metals?
The alkali metals
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boom
Lose 50 points!
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shark
Other team loses 25 points!
Okay!
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rocket
Go to first place!
Okay!
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lifesaver
Give 20 points!
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15
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What is the first ionisation energy?
The first ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms to form one mole of gaseous 1+ ions.
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15
×
Is the chlorine anion (Cl-) radius bigger or smaller than the chlorine neutral atom radius?
bigger
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15
×
The elements are arranged in order of increasing __________.
nuclear charge or number or protons
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15
×
What are the 3 most electronegative elements?
F, O, N
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thief
Give points!
5
10
15
20
25
×
shark
Other team loses 20 points!
Okay!
×
rocket
Go to first place!
Okay!
×
baam
Lose 20 points!
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×
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