In Mendeleev's periodic table the elements were arranged in the increa

1.	In Mendeleev's periodic table the elements were arranged in the increasing order of their atomicmasses. However cobalt with atomic mass 58.93 u was placed before nickel having an atomic massof 58.71 u. Give reason for the same.3М
Answer» sorry man I can't ANSWER because it says RUDE words

In Mendeleev's periodic table the elements were arranged in the increasing order of their atomicmasses. However cobalt with atomic mass 58.93 u was placed before nickel having an atomic massof 58.71 u. Give reason for the same.3М

Answer»

sorry man I can't ANSWER because it says RUDE words