A neutral aluminum atom has 13 electrons. However, an aluminum ion has a greater or fewer number of electrons, and is therefore positively or negatively charged.
In the electron configuration of aluminum, the 3p1 electron corresponds to the 3rd energy level (n=3) and is in the p subshell. The second quantum number, also known as the azimuthal quantum number (l), for a p subshell is 1. Therefore, the second quantum number of the 3p1 electron in aluminum is l = 1.
ms = +1/2
The third quantum number, known as the magnetic quantum number (m_l), describes the orientation of the orbital in which the electron resides. For the 2s orbital, which is spherical, the magnetic quantum number can only be 0. Therefore, for the 2s¹ electron in aluminum, the third quantum number (m_l) is 0.
The first quantum number, also known as the principal quantum number (n), indicates the main energy level of an electron in an atom. For the 3p¹ electron in aluminum, the value of n is 3, as it is in the third energy level. Therefore, the first quantum number for the 3p¹ electron is 3.
The electron configuration for aluminum atoms, which is 1s22s22p63s23p1.
Aluminum has 3 valence electrons
In the electron configuration of aluminum, the 3p1 electron corresponds to the 3rd energy level (n=3) and is in the p subshell. The second quantum number, also known as the azimuthal quantum number (l), for a p subshell is 1. Therefore, the second quantum number of the 3p1 electron in aluminum is l = 1.
ms = +1/2
The third quantum number, known as the magnetic quantum number (m_l), describes the orientation of the orbital in which the electron resides. For the 2s orbital, which is spherical, the magnetic quantum number can only be 0. Therefore, for the 2s¹ electron in aluminum, the third quantum number (m_l) is 0.
The first quantum number, also known as the principal quantum number (n), indicates the main energy level of an electron in an atom. For the 3p¹ electron in aluminum, the value of n is 3, as it is in the third energy level. Therefore, the first quantum number for the 3p¹ electron is 3.
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.
The electron configuration for aluminum atoms, which is 1s22s22p63s23p1.
n = 3
The electronic configuration for aluminum is 1s22s22p63s23p1 .
The second quantum number, also known as the azimuthal quantum number (l), describes the shape of the electron's orbital. For a 3p electron, the value of l is 1, corresponding to the p subshell. Therefore, the second quantum number of the 3p1 electron in aluminum is 1.
The correct electron configuration for aluminum (Al), which has an atomic number of 13, is 1s² 2s² 2p⁶ 3s² 3p¹. This configuration indicates that aluminum has two electrons in the 3s subshell and one electron in the 3p subshell, following the filling order of the atomic orbitals.
Aluminum has a valency of 3, its maximum oxidation number is 3. Nearly all of its compounds have Al with oxidation number +3.