Malik places a helium-filled balloon in a sunny window. He wonders how the motion of hellum gas molecules in the balloon would be affected by the addition of thermal energy from the Sun. Which graph BEST represents the
effect of adding thermal energy on the motion of the helium gas molecules?

Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements. Wikipedia
Symbol: He
Atomic number: 2
Atomic mass: 4.002602 u
Electrons per shell: 2
Electron configuration: 1s2
Discoverers: Pierre Janssen, Per Teodor Cleve, Norman Lockyer
Density
Valence electrons
Physical properties

Cost
3D model
From Signal Garden
See a Bohr model of a helium atom up close
View in 3D

Helium compound