An element of atomic weight $40$ has $2, 8, 8, 2$ as the electronic configuration. Which one of the following statements regarding this element is not correct?

Which of the following statement$(s)$ is/are incorrect?

As we go from left to right in period $2$ of the periodic table,the gram atomic volume of the elements:

In which of the following sets,elements are not correctly arranged with the property shown in brackets?

Which of the following arrangements does not represent the property indicated against it?

State whether the following statements are true or false:
$(i)$ Higher the ionization enthalpy,lower the screening effect.
$(ii)$ The ionization enthalpy of $Be$ is higher than that of $B$.
$(iii)$ The shielding effect increases as we move from left to right in a period.
$(iv)$ The increasing order of the first ionization energy is $B < Be < O < N$.