To identify the element present in each star based on the gaps observed in the wavelengths of its light, follow these steps:
1. Look at the given absorption wavelengths for each element in the table.
2. Compare the absorption wavelengths of the given star with the absorption wavelengths provided for each element.
3. Identify the element whose set of absorption wavelengths matches the wavelengths observed in the star.
Here is the provided data:
- Helium: 447 nm, 502 nm, 587 nm, 668 nm
- Carbon: 427 nm, 515 nm, 600 nm, 678 nm
- Sulfur: 425 nm, 565 nm, 639 nm, 675 nm
- Xenon: 484 nm, 590 nm, 687 nm
- Calcium: 429 nm, 527 nm, 593 nm, 645 nm
- Silver: 421 nm, 521 nm, 662 nm
Star 2 has absorption wavelengths of:
- 484 nm
- 590 nm
- 687 nm
Next steps:
1. Compare Star 2's wavelengths with the list of elements:
- Xenon: 484 nm, 590 nm, 687 nm (Match all three wavelenghts)
- Helium: Does not match
- Carbon: Does not match
- Sulfur: Does not match
- Calcium: Does not match
- Silver: Does not match
Since xenon is the only element that matches all the given absorption wavelengths for Star 2, it can be concluded that:
Star 2 contains xenon.
Final Answer for Star 2:
Star 2 ⬜ xenon
