The melting point and boiling points of elements in period 3 decrease across the period from left to right. Explain why there is a sharp increase in melting point and boiling point in the middle of the period and identify the element with such behaviour.

h

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.

: )

the correct answer would be b) volume versus temperature, because they are also directly proportional.