Question

l1 - $300 question when atoms of one element combine with atoms of other elements, they can form ______ a. more atoms b. elements c. substances

Explanation:

• Option A: Combining atoms doesn't create more atoms (conservation of matter), so A is wrong.
• Option B: Elements are made of one type of atom; combining different atoms forms compounds (a type of substance), not elements, so B is wrong.
• Option C: When atoms of different elements combine (e.g., H and O forming H₂O), they form substances (compounds or molecules), so C is correct.

Answer:

C. substances