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Which atom ha the electron configuration 12 2 2 2p 6 3 2 3p 6 4 2 3d 10 4p 6 5 2 4d 2 ? Why?

Sagot :

The element Zirconium has the given electronic configurations because its atomic number is 40 and its electrons are present in d subshell since it is a d block element.

Zr (Zirconium) is an element with atomic number 40 in the periodic table located in the V (fifth)  period having  melting point 1852 ℃. and density: 6.51 g/cm³. Electronic configuration of  Zirconium atom in ascending order of orbital energies:

1s² 2s² p⁶ 3s² p⁶ d¹⁰ 4s² p⁶ 5s²  4d²

The electronic configuration of the Zirconium atom in the ascending order of the levels:

1s² 2s² p⁶ 3s² p⁶ d¹⁰ 4s²p⁶d²  5s²

The reduced electronic configuration of Zr:

[Kr] 4d² 5s²

Therefore Zirconium atom is the element having given electronic configuration

.To know more about electronic configuration, please refer:

https://brainly.com/question/13919164

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