Which is the outermost orbit of all these elements?

Some elements belonging to second period of periodic table , and their atomic radii are given below .Observe them and write answers . which is the outermost orbit of alll these elements ?

Which is the outermost shell ?

The outermost whorl of a flower is

The outermost covering of animal cell is

Fill in the Blank ….. is the outermost layer of the teeth.

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

Outermost layer of the stem gives

Silicon has 4 electrons in the outermost orbit. In forming the bonds,

Silicon has 4 electrons in the outermost orbit. In forming the bonds.

________ the lightest of all solid elements.