How many electrons does a mn atom have in its 3d subshell

Mn atom has electrons in its 3d subshell.

Further explanation:  

The electronic configuration is the distribution of electrons of an atom in the atomic orbitals. There are two states for an electron: ground as well as the excited state. The configuration of the atom in the lowest possible energy levels is called the ground-state electronic configuration. When an electron jumps from the stable ground state to some higher level, that state is called the excited state and the electronic configuration corresponding to this state is known as the excited-state half-filled configuration.

The filling of electrons in different energy levels or orbitals is done in accordance with the following three rules.

1. Aufbau principle: The principle states that the electrons are filled in various orbitals in the increasing order of their energies as follows:

1s<2s<2p<3s<3p<4s<3d<4p<5s<4d<5p<6s<4f<5d<6p<7s<5f<6d<7p

2. Hund’s rule: Electron pairing will not start until each orbital is singly occupied.

3. Pauli’s exclusion principle: According to this principle, all the four quantum numbers for any two electrons can never be the same. In an orbital, the spin of two electrons has to be different. If one electron has the clockwise spin, the other would have the anticlockwise spin and vice-versa.

Manganese is a transition metal of the first transition series. The atomic number of Mn is 25. Its electronic configuration is . It has half-filled d-subshell. (Refer to the attached image). So the total number of electrons in 3d subshell of Mn is 5.

Learn more:

1. Determine the ion with configuration :

2. Identification of element which has electron configuration :

Answer details:

Grade: High School

Subject: Chemistry    

Chapter: Electronic configuration of the elements

Keywords: Mn, electrons, 3d subshell, 5 electrons, transition metal, 25, transition series, half-filled, aufau principle, Pauli’s exclusion principle, Hund’s rule.

elements

explanation:

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