p block elements

How many valence electrons are in the element iodine?

• 1
• 4
• 7
• 8

Most reactive elemental gas. 

• Oxygen
• Fluorine
• Chlorine
• Hydrogen

Chalcogens are 

• Group 15 elements
• Group 16 elements
• Group 17 elements
• Group 18 elements

which of the following elements does not show allotropy?

• Bi

• Sb

• N

• As

All elements in the Halogen family react violently because 

• Halogens have 1 valence electron that they give away readily to other elements in reactions
• Halogens have 7 valence electrons which gives up massive energy when they give all seven to other elements
• Halogens need only 1 electron which they will violently take from other elements 
• Halogens only react violently with water 

Bismuth is a

• Metalloids

• Non metal

• Metal

• None of the above

Nitrogen and phosphorus are

• Non metals

• Metals

• Metalloids

• None of the above

P-block elements are those elements in which last electron enters in

• P ortibal

• S orbital

• d orbital

• None of the above

In group 15 elements as we move down the group

• Non metallic character increase

• Metallic character increase

• Both

• None the above

Maximum covalency of nitrogen is

• 6

• 8

• 9

• 4