How many spin orientations are possible for an electron in an orbital?

How many maximum number of electrons can be accommodated in an orbital?

How many sub shells present in a principal energy shell?

In an atom the number of electrons in M-shell is equal to the number of electrons in the K and L shell. Answer the following questions.

a. Which is the outer most shell?

b. How many electrons are there in its outermost shell?

c. What is the atomic number of element?

d. Write the electronic configuration of the element.

Rainbow is an example for continuous spectrum explain.