Distribution of Electrons in Different Orbits (Shells)

An element has its electronic configuration as 2, 8, 2. The atomic number of this element is _____.

The maximum number of electrons is any shell is given by formula $2{\mathrm{n}}^{\mathrm{a}}$. Here, the value of 'a' will be _____. $(2, 3, 4)$

The maximum number of electrons present in a shell is given by the formula $2{\mathrm{n}}^{\mathrm{a}}$. Here, the value of a is _____. $(1, 2, 3)$

The circular paths of the electrons around the nucleus. (Orbitals / Orbits)

Define the following terms.

Orbits

 Electrons are present in the shells of an atom.

 The electrons present in the outermost shell of an atom are known as the _____.

The distribution of _____in different orbits of an atom was suggested by Bohr and Bury.

Electron distribution in an aluminium atom is 

Which of the following correctly represent the electronic distribution in the Mg atom ?

Which one of the following is a correct electronic configuration of sodium ?

How many number of electrons can accommodated in the outermost orbit when, n=2 ?

The maximum number of electrons present in a shell is given by the formula_____.

According to the Bohr Bury rule, the maximum number of electrons in a particular orbit is given by the formula $2{\mathrm{n}}^{\mathrm{a}}$. Here, the value of a will be _____. $(2, 4, 6)$

What is the electronic configuration of a hydrogen atom? $\left(1 / 0,1 / 1,1 / 2\right)$