An element have three shells & have five valance electrons. identify the element.

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.

Na, Mg and Al are the elements having one, two and three valence electrons respectively. Which of these elements (i) has the largest atomic radius, (ii) is least reactive ? Justify your answer stating reason for each.

The magnetic nature of elements depend on the presence of unpaired electrons. Identify the configuration of transition element,which shows highest magnetic moment.

Name two elements that have two electrons in their outermost shells.

Which element has: A total of two shells with three electrons in its valence shell?

The magnetic nature of elements depends on the presence of unpaired electrons, Identify the configuration of transition element, which shows highest magnetic moment .

Name two elements that have two electrons in their outermost shells

An element has an atomic number 12. How many electrons will be present in the K, L and M energy shells of its atom ?

Name three elements that have only a single electron in their outermost shells