Calculate the mass, in grams, of a single atom of this isotope of sodium. ( The Avogadro constant , L , is 6.023*10^ 23 mol ^ -1 )

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

it's all four options.