Explain concisely what is responsible for the variation of atomic radii in group 3A,4A,5A and 6A elements ​

i had this on my unit activity, i can you if you are a plato student. are you a plato student?

idk i’m struggling too

a is the answer to this question

explanation:

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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