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15
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What does "cluster" mean?
group of the same type of things that are close together
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15
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Which particles can transfer between atoms?
electrons. Protons and neutrins are fixed in place in the nucleus.
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15
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What can pure substances be classified as?
Elements or compounds
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What is a cation or a positive ion?
An atom that loses electrons and aquires a net positive charge
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What boes it mean to "bond" something?
To join two things strongly together
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15
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What are some ways in which atoms can ionise?
friction, electric discharges, collisions with other particles, or at extremely high temperatures that occur inisde stars
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trap
No points!
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magnet
Take 20 points!
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fairy
Take points!
5
10
15
20
25
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baam
Lose 25 points!
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15
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What do mixtures consist of?
two or more pure substances
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15
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what is an anion or negetive ion?
An atom that gains electrons and acquires a net negetive charge
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15
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What do you say when an atom has gained or lost electrons?
that it has been ionized
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lifesaver
Give 5 points!
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rocket
Go to first place!
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shark
Other team loses 15 points!
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baam
Lose 25 points!
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15
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What are the 3 forms in which elements can occur?
Isolated atoms, large clusters, or molecules
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banana
Go to last place!
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gift
Win 15 points!
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shark
Other team loses 20 points!
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baam
Lose 10 points!
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15
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What are compounds formed by?
More than one kind of atom
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15
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In which elements do we find isolated (with no bonds between them) atoms?
noble gases (helium, neon, argon, etc)
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15
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What are elements formed by?
Just one type of atom
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