1. how many protons and neutrons does a hydrogeon atom have?
- 4 of each
- 2 of each
- 1 of each
- 3 of each
1 of 5
Other questions in this quiz
2. what is the symbol for sodium?
3. what order does the electrons go in a atom with three full shells?
4. how many groups are there in the periodic table?
5. what is the name given to the 8th group of elements in the periodic table?
- metalic gasses
- unnobel gasses
- nobel gases
- hydrogenic gasses