Question

The element wid outer electronic configuration 3d6 4s2 is a

Answer 1

Answer:

the outer configuration k l m n or s p d f s 2 p 8 d 10 f 18

Answer 2

The element with outer electronic configuration $3d^64s^2$ is Iron and is a metal.

Explanation:

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.

Aufbau principle states that the electrons which are present in ground state of fill the atomic orbitals in such a way that the lowest energy levels which are available are filled first before electrons occupying the higher levels.

$1s^22s^22p^63s^23p^64s^23d^6$

Total electrons = 2=2+6+2+6+2+6= 26

Thus the element with 26 electrons has atomic umber of 26 and is iron.

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