Question

In mg atom,in ground state number of.Electrons with m=0 is

Answer 1

Explanation:

In ground state, total number of electrons is equal to it's atomic number. So the atom (mentioned) has electrons. In each subshell (including s), there will be one orbital having m=0 which contains two electrons. Thus total number of subshells here is 7.

Answer 2

The number of electrons with m=0 is 6

Explanation:

Azimuthal Quantum Number : It describes the shape of the orbital. It is represented as 'l'. The value of l ranges from 0 to (n-1). For l = 0,1,2,3... the orbitals are s, p, d, f...

Magnetic Quantum Number : It describes the orientation of the orbitals. It is represented as $m_l$. The value of this quantum number ranges from $(-l\text{ to }+l)$. For the value of $m_l$ = 0, the value of l has to be zero, i.e s orbital.

Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom.

The electrons are filled according to Afbau's rule in order of increasing energies and thus the electronic configuration for magnesium with atomic number of 12 is:

$Mg:12:1s^22s^22p^63s^2$

s electrons = 2+ 2+2 = 6

Learn about quantum numbers

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