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
In the third energy level (n=3), the sub-levels include 3s, 3p, and 3d. The 3s sub-level has 1 orbital, the 3p sub-level has 3 orbitals, and the 3d sub-level has 5 orbitals. Therefore, the total number of orbitals in the 3s, 3p, and 3d sub-levels combined is 1 + 3 + 5 = 9 orbitals.
Yes, there are times that ice can be as hard as steel in sub zero levels.
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.
Sub energy pretty much explains itself: It is below energy level
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.