Why does cobalt comes before nickel even if it has high atomic mass

it is because cobalt has less proton and nickel has more and periodic tabke is arranged in sequence in no. of protons

Explanation:

and u have asked one more question the answer for that

:-the last one is mentioned incomplete because the oganesson is newly formed and we it is last atomic no. that is Og118 asthe 32 is big than 31 but the sequence is incomplete because there are more elements s we haven't yet formed

3

explanation:

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.