The elements with 8 electrons in the outer shell are called noble gases.

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

Element A has 3 electrons in the outermost shell and element B has 6 electrons in the outermost shell. what is the formula of the compound.

What is the general name of the elements having 8 electrons in the valence shell of their atoms ?

List the uses of noble gases.

Name two elements that have two electrons in their outermost shells

An element has 2 electrons in the M shell. What is the atomic number of the element ?

Name the various noble gases.

How many electrons are presents in the outer shell of carbon?