Question

using the periodic table complete the attached table.

Answer 1

how did you get that

Answer 2

no. of protons = atomic mass.
no. of neutron = mass no - atomic mass (or no. of protons)
by this u can do it

Answer 3

http://www.ptable.com/ that was the table we were told to use and i guess it conufused me

Answer 4

ptable is the best periodic table on the internet.. what confuses you?

Answer 5

acc to table results will be same....