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15
×
An atom has atomic number 7, mass number 15, and net charge +2. How many electrons are in the atom?
5
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5
×
The Atomic Number (Z) of Phosphorus.
15
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5
×
Nickel (Ni) element has how many protons?
28
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5
×
Which sub-atomic particle is positively charged?
proton
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×
seesaw
Swap points!
Oops!
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star
Double points!
Okay!
×
rocket
Go to first place!
Okay!
×
baam
Lose 10 points!
Oops!
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banana
Go to last place!
Oops!
×
seesaw
Swap points!
Okay!
×
rocket
Go to first place!
Okay!
×
banana
Go to last place!
Oops!
10
×
Which model of the atom is represented in the picture shown below?
Nuclear model or Rutherford's model
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10
×
How many electrons does a neutral Neon (Ne) have?
10
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10
×
What is the net charge of an atom with 8 neutrons, 3 electrons, and 7 protons?
+4
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10
×
To calculate the number of Neutrons in an atom, subtract the __ from the ____.
Atomic Number / Atomic Mass or proton / Atomic Mass
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5
×
Which sub-atomic particle is negatively charged?
electron
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15
×
Which scientist is responsible for the discovery of the nucleus?
Ernest Rutherford
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10
×
What is the net charge of an atom with 3 electrons and 5 protons?
+2
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15
×
An atom with electron: 10, mass number: 16, and net charge: -3. What is the number of neutrons?
9
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trap
No points!
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seesaw
Swap points!
Okay!
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gift
Win 15 points!
Okay!
×
baam
Lose 20 points!
Oops!
5
×
Which element has 17 protons?
chlorine
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×
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