Innovative Chemistry>Chapter 5 - Atomic Structure>EVALUATE YOUR UNDERSTANDING>Q III

EASY

7th ICSE

IMPORTANT

Earn 100

Out of atoms and molecules, which can exist independently? Why?

Important Questions on Atomic Structure

EASY

7th ICSE

IMPORTANT

Innovative Chemistry>Chapter 5 - Atomic Structure>EVALUATE YOUR UNDERSTANDING>Q III

Define an ion. Name the ion formed when an atoms gain electrons.

EASY

7th ICSE

IMPORTANT

Innovative Chemistry>Chapter 5 - Atomic Structure>EVALUATE YOUR UNDERSTANDING>Q III

The valency of zinc is $2$ . What is the valency of another element in the given formula?

$ZnO$

EASY

7th ICSE

IMPORTANT

Innovative Chemistry>Chapter 5 - Atomic Structure>EVALUATE YOUR UNDERSTANDING>Q III

The valency of zinc is $2$ . What is the valency of another element in the given formula?

${ZnCl}_{2}$

EASY

7th ICSE

IMPORTANT

Innovative Chemistry>Chapter 5 - Atomic Structure>EVALUATE YOUR UNDERSTANDING>Q III

The valency of zinc is $2$ . What is the valency of another element in the given formula?

${Zn}_{3} N_{2}$

EASY

7th ICSE

IMPORTANT

Innovative Chemistry>Chapter 5 - Atomic Structure>EVALUATE YOUR UNDERSTANDING>Q III

The valency of zinc is $2$ . What is the valency of another element in the given formula?

${ZnBr}_{2}$

EASY

7th ICSE

IMPORTANT

Innovative Chemistry>Chapter 5 - Atomic Structure>EVALUATE YOUR UNDERSTANDING>Q III

The valency of sodium is

1

, oxygen is

2

and chlorine is one. Write down the formula of Sodium oxide.

MEDIUM

7th ICSE

IMPORTANT

Innovative Chemistry>Chapter 5 - Atomic Structure>EVALUATE YOUR UNDERSTANDING>Q III

The valency of sodium is

1

, oxygen is

2

and chlorine is one. Write down the formula of Sodium chloride.

MEDIUM

7th ICSE

IMPORTANT

Innovative Chemistry>Chapter 5 - Atomic Structure>EVALUATE YOUR UNDERSTANDING>Q III

The valency of chlorine is

1

. Write down the valency of iron in

{FeCl}_{2}