Multiple Chuice 1 point In which of the following sequences of elernents does each element have a two-letter chemical sye silicon zinc, trydrogen fodthe, xtmon, tharthum bar tum, iron, nitrogen sefentum, nicicel, strontium Mostiple \( \square \) noion 1 point

To solve the problem, we need to identify which of the given sequences contains elements where each element has a two-letter chemical symbol. Let's analyze each option: 1. **Silicon, Zinc, Hydrogen** - Silicon (Si) - 2 letters - Zinc (Zn) - 2 letters - Hydrogen (H) - 1 letter - **Not all have two-letter symbols.** 2. **Fodthe, Xtmon, Tharthum** - These do not correspond to any known chemical elements. - **Not valid.** 3. **Barium, Iron, Nitrogen** - Barium (Ba) - 2 letters - Iron (Fe) - 2 letters - Nitrogen (N) - 1 letter - **Not all have two-letter symbols.** 4. **Sefentum, Nicicel, Strontium** - These do not correspond to any known chemical elements. - **Not valid.** Based on the analysis, none of the sequences provided contain elements where each element has a two-letter chemical symbol. If you have any further questions or need clarification, feel free to ask!