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Teams
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15
×
Some elements have been created by _______.
Scientists/people/humans
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Check
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15
×
A particle made of two protons and two neutrons and no electrons is known as an....
alpha particle
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15
×
Only hydrogen was created during the ____ ____.
Big bang (bang bang bang!)
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15
×
Electrons have a mass of almost _____.
zero
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×
thief
Give points!
5
10
15
20
25
×
star
Double points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
baam
Lose 5 points!
Oops!
×
thief
Give points!
5
10
15
20
25
×
fairy
Take points!
5
10
15
20
25
×
fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
15
×
These particles fly around the nucleus of the atom.
electrons
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Check
Okay!
Check
15
×
How do we protect ourselves from ionising radiation when we go outside?
We wear suncream or cover our skins with clothes and hats.
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Check
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Check
15
×
What element do humans absorb from the air when we breathe?
Oxygen
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15
×
Everything in our world is either e_____ or a_____.
Energy or atoms (matter)
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×
thief
Give points!
5
10
15
20
25
×
seesaw
Swap points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 20 points!
Oops!
15
×
U and Pu are two elements used for generating electricity in nuclear power plants and satelites. What elements do the symbols 'U' and 'Pu' represent?.
Uranium and Plutonium
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15
×
If an element has an atomic number of 5 and an atomic mass of 12, how many neutrons does it have?
7
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15
×
_______ radiation is energy, and so is unaffected by magnets.
Gamma
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15
×
The atomic mass is the weight of all the _______ and _______ in an atom.
Protons and neutrons
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15
×
Protons are ________ly charged.
positive
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Check
Okay!
Check
×
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