Question

the atomic number of element which is not included in the main body of the periodic table is :
a) 43
b) 57
c) 68
d) 80​

Answer 1

Answer:

so cl to to co at do cl to come study only study only ate and club noon not free we you did see how big job description of how is my boss boss sh hi in cabin

Explanation:

f do co do we co no so we don't count class an of we going send stuff only see the going on

Answer 2

Answer:

57 is the correct answer . as we khow the lanthanide and actinide are not on the correct position of modern periodic table.