5
Silver has 5 energy levels. 😄
2
The range of the levels is between 0 to n-1. 3 minus 1 equals to 2, so we have 0, 1, 2 as sub levels. They are the same number of sub-levels.
2
Three sublevels: px, py, pz
Yes, there are times that ice can be as hard as steel in sub zero levels.
Sub energy pretty much explains itself: It is below energy level
Silver (Ag) has an atomic number of 47, and its electron configuration is [Kr] 4d¹⁰ 5s¹. The sub-shell being filled by silver is the 4d sub-shell, which is fully filled with 10 electrons. Additionally, the single electron in the 5s sub-shell contributes to its chemical properties.
No -- silver is an element. It's smallest possible component is an atom of silver, which (obviously) can not be sub-atomic.
sub levels
There are one 3s orbital, three 3p orbitals, and five 3d sublevels.
There are many Pokemon found on Mt. Silver of various levels around level 40 to level 50.