To find atomic numbers that add up to 200 without using Roman numerals, we can look at the periodic table of elements. Here are a few combinations of atomic numbers that sum to 200. Note that the atomic numbers of elements typically range from 1 (Hydrogen) to 118 (Oganesson) as of my last update.
Here is one example combination:
- Atomic number 86 (Radon)
- Atomic number 114 (Flerovium)
86 + 114 = 200
If you would like more combinations or a specific range of atomic numbers, please let me know!