Science (Theory & Practical) Class-9>Chapter 8 - Chemical Bonding>Questions>Q 4

HARD

9th Chhattisgarh Board

IMPORTANT

Earn 100

The number of the electron in the M shell of an element is $7$ and its valency is $1$ . What will be the electronic configuration of the ion of this element?

Important Questions on Chemical Bonding

MEDIUM

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 8 - Chemical Bonding>Questions>Q 5

You know that aluminium has three electrons in its valence shell which it loses to form

{Al}^{3 +}

. Can you name the element that has four electrons in its outermost shell?

MEDIUM

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 8 - Chemical Bonding>Exercise 3>Q 1

The molecular formula of the compound ammonia is

{NH}_{3}

, it is formed by nitrogen and hydrogen. Hydrogen needs to share one electron and nitrogen need to share three electrons to attain inert gas configuration. Can you draw the electron dot structure of ammonia?

MEDIUM

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 8 - Chemical Bonding>Questions>Q 1

Draw the electron dot structure of ethane

(C_{2} H_{6})

.

MEDIUM

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 8 - Chemical Bonding>Questions>Q 2

Draw the electron dot structure of any molecule which has a double bond.

EASY

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IMPORTANT

Science (Theory & Practical) Class-9>Chapter 8 - Chemical Bonding>Questions>Q 3

The atomic number of chlorine is

17

. Write its electronic configuration.

HARD

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 8 - Chemical Bonding>Questions>Q 3

The atomic number of chlorine is $17$ . Explain the formation of chlorine molecule using electron dot structures.

HARD

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 8 - Chemical Bonding>Questions>Q 1

Write down the differences between ionic and covalent compounds.

HARD

9th Chhattisgarh Board

IMPORTANT

Science (Theory & Practical) Class-9>Chapter 8 - Chemical Bonding>Questions>Q 2

Explain why ionic compounds have high melting and boiling points.