Helium (Noble Gases) trivia
Helium (Noble Gases) Mini Quiz
Test your knowledge with these top questions!
Question 1
Which helium property lets a helium balloon rise in Earth's atmosphere?
Helium is less dense than air, so a helium-filled balloon displaces heavier air and rises.
Question 2
Where did scientists first identify helium's spectral signature?
Astronomers detected helium in the Sun's spectrum in 1868, before scientists isolated the element on Earth.
Question 3
Why can inhaled helium make a voice sound higher?
Helium makes sound travel faster through the vocal tract, shifting resonances upward while vocal-cord vibration stays essentially unchanged.
Question 4
What keeps helium from reacting easily with other elements?
Helium has two electrons filling its first shell, giving helium little tendency to gain, lose, or share electrons.