The magnetic quantum number, ml, runs from -l to +l (sorry this font is rubbish the letter l looks like a 1) where l is the azimuthal, angular momentum quantum number. The magnetic quantum number ml depends on the orbital angular momentum (azimuthal) quantum number, l, which in turn depends on the principal quantum number, n. The orbital angular momentum (azimuthal) quantum number, l, runs from 0 to (n-1) where n is the principal quantum number. l= 0 is an s orbital, l= 1 is a p subshell, l= 2 is a d subshell, l=3 is an f subshell. The magnetic quantum number, ml, runs from -l to +l (sorry this font is rubbish the letter l looks like a 1). ml "defines " the shape of the orbital and the number within the subshell. As an example for a d orbital (l=2), the values are -2, -1, 0, +1, +2, , so 5 d orbitals in total.
The principal energy level that consists of one s orbital and three p orbitals has a quantum number of 2. The s orbital is part of the first principal energy level (n=1) and the p orbitals are part of the second principal energy level (n=2).
secondary quantum numberI don't think it is a number, but it could be referring to the Orbitals, being S, P, D, and F. Each orbital is a specific shape and the orbitals are determined in blocks on the Periodic Table. The energy, or Quantum Number would go in front, such as 4p, which means the principal quantum number or energy level is 4 and the orbital shape is p. Hope this helps
Elements in the second period have two principal energy level. The first energy level has one s subshell. The second energy level has one s subshell and three p subshells.
The K shell is the first shell in an atom and has only one subshell, which is the 1s subshell. This subshell can hold up to 2 electrons.
The number represents the shape of an electron subshell is the azimuthal quantum number, also known as the angular momentum quantum number. It is denoted by the letter l and can have values ranging from 0 to n-1, where n is the principal quantum number. Each value of l corresponds to a specific shape of the subshell: 0 (s), 1 (p), 2 (d), 3 (f), and so on.
n = 2
The first quantum number of a 2s electron in phosphorus is the principal quantum number, which specifies the energy level of the electron shell. For a 2s electron, the principal quantum number is 2.
The first quantum number is the principal quantum number, denoted by "n." In aluminum, the 3p1 electron would have a principal quantum number of n = 3, since it is in the third energy level orbiting the nucleus.
n = 3
The first quantum number is the principal quantum number (n), which indicates the main energy level of an electron. For a 2s electron in phosphorus (atomic number 15), the first quantum number is 2.
The first quantum number (principal quantum number) for the 1s2 electron in a phosphorus atom is n = 1. This indicates the energy level or shell in which the electron is located.
n=3
The first quantum number (n) represents the energy level (shell), so for a 1s2 electron, it would have a value of 1.
The energy level the electron is in
3
The number of subshells present in a principal energy shell is equivalent to the principal quantum number. For example, in the first principal energy shell (n=1), there is only one subshell (s). In the second principal energy shell (n=2), there are two subshells (s and p), and so on.