On moving down the group,which of the following properties gradually increases?

Which of the following is a normal element?

Use the periodic table to answer the following questions.
$(a)$ Identify an element with five electrons in the outer subshell.
$(b)$ Identify an element that would tend to lose two electrons.
$(c)$ Identify an element that would tend to gain two electrons.
$(d)$ Identify the group having metal,non-metal,liquid as well as gas at room temperature.

Which elements are classified as metalloids? Name them.

Among the given configurations,identify the element which does not belong to the same family as the others?

Which one of the following orders represents the correct sequence of increasing basic nature of the given oxides?