What is an orbital? Draw the shapes of the $2 s, 2 p_{x}, 2 p_{y}, 2 p_{z}, 3 d_{xy}$ and $3 d_{z^{2}}$ orbitals.

Important Questions on Atomic Structure and the Periodic Table

EASY

JEE Advanced

IMPORTANT

Concise Inorganic Chemistry>Chapter 1 - Atomic Structure and the Periodic Table>Exercise 1>Q 13

Give the names and symbols of the four quantum numbers required to define the energy of electrons in atoms. What do these quantum numbers relate to, and what numerical values are possible for each? Show how the shape of the periodic table is related to these quantum numbers.

MEDIUM

JEE Advanced

IMPORTANT

Concise Inorganic Chemistry>Chapter 1 - Atomic Structure and the Periodic Table>Exercise 1>Q 14

The first shell may contain up to

2

electrons, the second shell up to

8

, the third shell up to

18

and the fourth shell up to

32

. Explain this arrangement in terms of quantum numbers.

MEDIUM

JEE Advanced

IMPORTANT

Concise Inorganic Chemistry>Chapter 1 - Atomic Structure and the Periodic Table>Exercise 1>Q 15

Give the values of the four quantum numbers for each electron in the ground state for (a) the oxygen atom, and (b) the scandium atom. (Use positive values for

m_{l}

and

m_{s}

first.)

MEDIUM

JEE Advanced

IMPORTANT

Concise Inorganic Chemistry>Chapter 1 - Atomic Structure and the Periodic Table>Exercise 1>Q 16

Give the sequence in which the energy levels in an atom are filled with electrons. Write the electronic configurations for the elements of atomic number