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Grade 7 grade-arrow Chemistry subject-arrow Simplified Middle School Chemistry - Class 7 book-arrow Atomic Structure chapter-arrow Exercise exercise-arrow Question 13
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Atomic Structure | Exercise

Question 13

CHAPTERS

1. Matter and its Composition

2. Physical and Chemical Changes

3. Elements, Compounds and Mixtures

4. Atomic Structure

5. Language of Chemistry

6. Metals and Non-Metals

7. Air and Atmosphere

EXERCISES

1. Exercise

2. Objective Type Questions

13) Give an example of three elements exhibiting variable valency.

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Solution:

  1. Iron (Fe) can show a valency of 2 and 3
  2. Copper (Cu) can show a valency of 1 and 2.
  3. Phosphorus (P) can show a valency of 3 and 5
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subject-cta

Chemistry

Question 13

13) Give an example of three elements exhibiting variable valency.

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

Solution:

  1. Iron (Fe) can show a valency of 2 and 3
  2. Copper (Cu) can show a valency of 1 and 2.
  3. Phosphorus (P) can show a valency of 3 and 5

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