(a) Name three elements that have a single electron in their outermost shells.
(b) Name two elements that have two electrons in their outermost shells.
(c) Name three elements with completely filled outermost shells.

Open in App

Solution

(a) Lithium (Li), sodium (Na) and potassium (K) are three elements (metals of group 1) that have only a single electron in their outermost shell.

(b) Magnesium (Mg) and calcium (Ca) are two elements (metals of group 2) that have two electrons in their outermost shell.

(c) Helium (He), neon (Ne) and argon (Ar) are three elements (inert gases of group 18) that have a completely filled outermost shell.

Suggest Corrections

Similar questions

Name:

1. Three elements having a single electron in their outermost shell.

2. Three elements with filled outermost shell.

3. Three elements having 7 electrons in their outermost shell.

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

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

Name

(a) threeelements that have a single electron in their outermost shells.

(b) twoelements that have two electrons in their outermost shells.

Join BYJU'S Learning Program