Absorption of 1.0 rad of which of the following types of radiation will result in the greatest tissue damage?
○ alpha
○ beta
○ gamma
○ They all result in the same amount of damage.

How have the greenhouse gasses increased from the year 2000 to 2018

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.