ILL GIVE 5 STARS AND A FOLLOW When radiant energy reaches an object, what must happen in order for
the object to become warmer?

Explanation:

All objects emit radiation if their temperature is greater than absolute zero. ... This law states that all objects with temperatures above absolute zero emit radiation at a rate proportional to the fourth power of their absolute temperature. This is why radiant energy is affected when it reaches warmth.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.