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15
×
Rutherford's atomic model is usually known as ...?
the planetary model
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20
×
Dalton believed that matter is made up of indivisible particles that cannot be _________
destroyed
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25
×
In Rutherford's atomic model, the electrons are _______ing around the nucleus.
orbit(ing)
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trap
No points!
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star
Double points!
Okay!
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rocket
Go to first place!
Okay!
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baam
Lose 5 points!
Oops!
15
×
The electrons fill the levels and sublevels, starting with the level .... (closest/furthest) to the nucleus.
Closest
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thief
Give points!
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25
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rocket
Go to first place!
Okay!
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gift
Win 25 points!
Okay!
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baam
Lose 25 points!
Oops!
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eraser
Reset score!
Oops!
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seesaw
Swap points!
Okay!
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gift
Win 25 points!
Okay!
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thief
Give points!
5
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25
15
×
True or false: Isotopes can be stable and unstable.
True
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15
×
What can you find inside the atom, between the nucleus and the electrons? (in Rutherford's model)
nothing, that space is empty
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15
×
Who was the first person to study atoms using the scientific method?
Dalton
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10
×
Where was Democritus from?
Ancient Greece
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15
×
What is the maximum number of electrons in a p sublevel?
6
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25
×
Who said that "the positive charge of atoms in concentrated in a tiny central area"?
Rutherford
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15
×
Thomson said that atoms are neutral because ...?
the number of positive protons is equal to the number of negative electrons
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15
×
What did Rutherford call the centre of the atom?
a nucleus
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15
×
The mass number is the total number of ...?
protons AND neutrons added together
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