Question

write
eight features of
the long from
of the modem
periodic table.​

Answer 1

Answer:

table it is also known as the long form of modern periodic table the modern periodic table has seven horizontal rows known as periods. and 18 vertical columns known as groups. periods are numbered from one to seven elements of the same. period have the same number of shells.

Answer 2

Answer:

pta ni answer as I am in my online class