Carbonates of sodium are stable but carbonates of lithium are less stable because of?
Correct answer: B. High charge density
- A. Low electronegativity
- B. High charge density
- C. Low charge density
- D. Not known yet
Explanation
Lithium ion (Li⁺) is very small with a high charge density. This high charge density polarizes the carbonate ion (CO₃²⁻) strongly, making lithium carbonate less stable. Sodium ions (Na⁺) are larger with lower charge density, so their carbonates are more stable.
Last updated
About Reactions of Group I Elements
Group I elements have one valence electron, so their reactivity increases down the group as ionisation energy decreases. Their reactions with water, oxygen, hydrogen and halogens produce hydroxides, oxides, hydrides and halides, while the behaviour of lithium differs from the heavier metals because of its small ionic size.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A elements are named as alkali metals because_______________?
A metal form strong base salts and stable carbonates. The metal is:
Alkali and alkaline earth metals impart colours when heated over the burner, it is due to?
Ammonia may be prepared by heating ammonium chloride with_______________?
Ammonia may be prepared by heating ammonium chloride with: