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15
×
What is a chemical compound?
A substance formed by 2 or more atoms chemically joined together
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15
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Which group of elements is the most reactive? Why?
Group 17; they only need 1 electron to become stable
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15
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What is the correct formula for aluminum sulfide?
Al2S3
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15
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What type of bond will form between Br and I?
covalent
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15
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In covalent bonds, atoms GAIN/LOSE/SHARE electrons.
share
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15
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When a neutral atoms gains 1 electron, it becomes a NEGATIVE ion. WHY?
Because now it has more electrons that protons
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lifesaver
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magnet
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fairy
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lifesaver
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15
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What do we call this compound? CaS
calcium sulphide
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15
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What type of bond will form between Na and F?
ionic
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15
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What is the correct formula for potassium chloride?
KCl
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monster
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gift
Win 10 points!
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shark
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lifesaver
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15
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Why do atoms form compounds?
To become stable by gaining, loosing or sharing electrons
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15
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(Most) metals have POSITIVE/NEGATIVE oxidation numbers?
positive
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eraser
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seesaw
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fairy
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banana
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15
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An ionic bond is formed because of _________ attraction between an anion and a cation.
ELECTRICAL attraction
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baam
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fairy
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fairy
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lifesaver
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