Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 2 - Electrons in Atoms>Question>Q 7

MEDIUM

AS and A Level

IMPORTANT

Earn 100

Use $1 s^{2}$ notation to give the electronic configuration for the following element selenium having atomic number $34$ .

Important Questions on Electrons in Atoms

HARD

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 2 - Electrons in Atoms>Questions>Q 8

An element has the electronic configuration

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10} 4 s^{2} 4 p^{6} 4 d^{10} 5 s^{2} 5 p^{5}

.
Which block in the periodic table does this element belong to?

HARD

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 2 - Electrons in Atoms>Questions>Q 8

An element has the electronic configuration

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10} 4 s^{2} 4 p^{6} 4 d^{10} 5 s^{2} 5 p^{5}

.
Which group does it belong to ?

HARD

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 2 - Electrons in Atoms>Questions>Q 8

An element has the electronic configuration

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10} 4 s^{2} 4 p^{6} 4 d^{10} 5 s^{2} 5 p^{5}

.
Identify this element ?

HARD

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 2 - Electrons in Atoms>Questions>Q 8

Which block in the periodic table does the element with the electronic configuration

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{5} 4 s^{1}

belong to ?

MEDIUM

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 2 - Electrons in Atoms>Questions>Q 9

Which one of these statement about the electrons in the outermost principal quantum shell of phosphorus(atomic number 15) is true?

MEDIUM

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 2 - Electrons in Atoms>Question>Q 10

Write the electronic configuration for the following ions

{Al}^{+ 3} (Z = 13)

.

MEDIUM

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 2 - Electrons in Atoms>Question>Q 10

Write the electronic configuration for the following ions

O^{2 -} (Z = 8)

.

MEDIUM

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 2 - Electrons in Atoms>Question>Q 10

Write the electronic configuration for the following ions

{Fe}^{+ 2} (Z = 26)

.