The diagram shows ned’s movement as he left his house and traveled to different places throughout the day. which reference point should be used to find out how far ned traveled when he went from the pet store to the swimming pool? v w x z

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

"the periodic table is arranged in order of atomic number."

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.

idk what is it? is this a question that you know the answer or u dont