Smarty Pants Quiz
09
00
00
Which element has an atomic number of 2?
Oxygen
Lithium
Hydrogen
Helium
Be careful! Try again!
Because helium is lighter than air it is commonly used to fill airships, blimps and balloons.
Alright, pretty good, try this!
09
00
00
Which element has an atomic number of 2?
19 of 25 people (76%) answered this question correctly.
1
of 54 questions completed
Dashboard
Your Coins:
0
World Coin Count: 8630
Product
Value
Cost
Life
Buy lives to help pass the quiz.
1 x 50 Coins