EDUCATE

Non-metallic character of elements across the period

• decreases
• increases.
• remains same
• depends on period

The elements of one short period of the table are given below in order from left to right: Li Be B C N O F Ne Which one of the above elements belongs to the halogen series?

• N
• O
• F
• Ne

A group of elements in the Periodic Table are given (C, Si, Ge, Sn, Pb ) Which element has the most non- metallic character?

• Pb
• Ge
• Si
• C

What is the common feature of the electronic configurations of the elements in group 17?

• All the elements have 1 valence electron
• All the elements have 7 valence electrons
• Second shell has 8 electrons
• Third shell has 18 electrons

Which of the following properties do not match with the elements of the halogen family?

• They have seven electrons in their valence shell
• They are highly reactive chemically
• They are metallic in nature
• They are diatomic in their molecular form.