Question

Which best describes the motion of helium atoms in gaseous helium? A. The helium atoms can slide past another one? B. The helium atoms move quickly in all direction ? C. The helium atoms are fixed in one place? D. The helium atoms move slowly only after

Help please!!!!!!

Answer 1

B.

Explanation:

Solids are things where atoms or molecules are basically fixed in place but may vibrate.

Liquids are things where atoms or molecules are stil confined to close range but can slide past each other.

Gases are things where atoms or molecules are moving fast enough and with enough energy to break free of each other and fill up the space they are in.

Helium is a gas, so it has freely and quickly moving atoms.