Principal quantum number of an atom represents - Vidyadip

MCQ

Principal quantum number of an atom represents

✓
Size of the orbital
B
Spin angular momentum
C
Orbital angular momentum
D
Space orientation of the orbital

✓

Answer

Correct option: A.

Size of the orbital

a
(a) Principal quantum no. tells about the size of the orbital.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 2. structure of atom→2. structure of atom — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The bond energies of $H - H$ and $Cl--Cl$ are $430 \,kJ \,{\rm{mo}}{{\rm{l}}^{ - 1}}$and $242 \,kJ \,{\rm{mo}}{{\rm{l}}^{ - 1}}$ respectively, $\Delta {H_t}$ for $HCl$ is $91\, kJ$ ${\text{mo}}{{\text{l}}^{ - 1}}$. The bond energy of $HCl$ will be ............. $\mathrm{kJ}$

Which of the following statements is correct?

In the reaction $C{H_3} - Br + 2Na + Br - C{H_3} \to $, the product called

The structural formula of a compound is $C{H_3} - CH = C = C{H_2}.$ The type of hybridization at the four carbons from left to right are

The expression of equilibrium constant $\left( K _{ c }\right)$ for reaction $3 A+ B \rightleftharpoons 2 C$ will be :

How many grams of concentrated nitric acid solution should be used to prepare $250\ mL$ of $\ce{2.0M HNO_3}?$ The concentrated acid is $70\%\ \ce{HNO_3}$.

What happens when an inert gas is added to an equilibrium keeping volume unchanged?

A sample of gas is compressed from an initial volume of $2V_0$ to $V_0$ using three different processess.
First: Using reversible isothermal.
Second: Using reversible adiabatic
Third: Using irreversible adiabatic under a constant external pressure.
Than

Which one of the following molecules is paramagnetic

$\ce{A_3L}$ container at $3$ atm pressure consist a mixture of $\ce{N_2}$ gas and $\ce{H_2O}$ vapours. Solid sphere of volume $0.5L$ is also present in same container. What will be the pressure of gas, if volume of container is reduced to $2L,$ at same temperature $(\ce{AQ}.$ tension $= 0.2$ atm$)?$