How are atoms and elements related? Please explain with full and clear sentences. Thank you! :)

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.