Escaping the Sun

Part A
Layers Interactions

5 22
10 212
15 182
20 265
25 822

As the number of layers goes up the number of interactions usually goes up. The only exception is for 15 layers. I don't see a linear or exponential pattern in the numbers.
Part B
Layers Interactions

5 30
10 99
15 250
20 408
25 639

The number of interactions went up per layer. More accurate because the more points of data you have to test the more accurate your results will be.

Part C
Energy(eV) Wavelength(NW) Photons sent: Photons Detected

1.5 828 15:12
1.8 690 15:11
2.0 621 15:10
2.3 540 15:11
2.5 497 15:12

1.) It gets smaller.
2.) The number increases consistently with the exception of the wavelength of 2.0, where it decreased then resumed getting larger.

Part D
Energy(eV) Wavelength(NW) Gas Atom Photons sent: Photons Detected
2.2 565 O 15:4
2.2 565 Mg 15:13
2.2 565 Na 15:9
2.2 565 Ca 15:13

1.) The different gas atoms have different consistences and that will effect the number of photons detected.
2.) A line spectra would have to be seen as if the element was used as a light bulb.
3.) Yes you would get the same patterns because the elements are still the same you would just have a higher wavelength.