IDNLearn.com: Where your questions meet expert advice and community support. Get accurate and comprehensive answers to your questions from our community of knowledgeable professionals.

Review the periodic table to answer this question.

Which of the following molecules would be considered an ionic compound?

A. [tex]O_2[/tex]
B. [tex]K_2S_3[/tex]
C. [tex]H_2O[/tex]
D. [tex]NH_3[/tex]


Sagot :

To determine which of the given molecules is considered an ionic compound, it is essential to understand the nature of ionic and covalent bonds.

1. O₂ (Oxygen Gas):
- Oxygen gas consists of two oxygen atoms bonded together.
- These atoms share electrons equally, forming a covalent bond.

2. K₂S₃ (Potassium Sulfide):
- Potassium (K) is a metal, and sulfur (S) is a non-metal.
- Ionic bonds typically form between metals and non-metals.
- Potassium donates electrons to sulfur, resulting in positive potassium ions (K⁺) and negative sulfide ions (S²⁻).
- This forms an ionic compound.

3. H₂O (Water):
- Water consists of hydrogen and oxygen atoms bonded together.
- The atoms share electrons, but the sharing is unequal due to oxygen's higher electronegativity.
- This results in a polar covalent bond.

4. NH₃ (Ammonia):
- Ammonia consists of nitrogen and hydrogen atoms bonded together.
- The atoms share electrons, with nitrogen holding the shared electrons more closely due to its higher electronegativity.
- This is also a polar covalent bond.

Based on this analysis, the molecule that is considered an ionic compound is:

K₂S₃ (Potassium Sulfide)

Thus, the correct answer is K₂S₃.