wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

An element with atomic no. 11 is an alkali metal. Into which family shall you place elements with atomic no 10 and 12 respectively?


Open in App
Solution

Alkali metals: alkali metals are the elements that are placed in group 1 and are belongs to the s-block.

as we can calculate the electronic configuration of the given element which has an atomic no 11.

The electronic configuration of the given element is: 2, 8, 1

So, yes this element is belong to group 1 as in the last shell only 1 electron is present.

The electronic configuration of atomic no. 12 and 10 are as follows:

Atomic no 10: 2, 8

As we can see the total no. of shells is 3 so it will be the member of the 3rd period and as the total no. of electrons in its outer shell is 8 so it will be the member of group 18. and the name of the group is noble gases (because they don't react with any other elements).

Atomic no 12: 2, 8, 2

As we can see the total no of shells is 3 so it will be the member of the 3rd period and as the total no of electrons in its outer shell is 2 so it will be the member of group 2 and the name of the group is noble alkaline earth metals (because they react with water to form alkaline solution and they found in earth crust).


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Higher Elements, Oxidation State
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon