Which of the following is a property of atoms? A. They are very small.

B. They do not take up space.

C .They have no mass.

D. They have a large volume.

a

Explanation:

atom is the smallest unit of matter.

atom make up all the matter around us.

atom are made up of 3 particles:protons,neutrons,electrons

atom occupies space

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.