Question

Which of the following statements related to the modern periodic

table is incorrect and

why? [2]

(a) Each block contains a number of columns equal to the number

of electrons

that can occupy that sub shell.

(b) The d - block has 8 columns, because a maximum 8 electrons

can occupy all

the orbitals in d - sub shell.

​

Answer 1

a)Each block contains a number of columns equal to the number of electrons that can occupy that sub shell.