What do you think would happen if a solid were exposed to extremely cold temperatures, or if a gas were exposed to extremely hot temperatures?

What is the most stable monatomic ion formed from nitrogen

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

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.