Question

Write down the electronic configuration of cr and cu

Answer 1

hi

here is your answer....
$cr = {ar}^{18 \: } {3d}^{5} \: {4s}^{1} \\ \\ \: the \: electronic \: configuration \: of \: cu \: is \\ \\ cu = {ar}^{18} \: {3d}^{10} {4s}^{1}$
here ar= Ar(Argon)

⚫the configuration of Ar is [Ne]^10 3s^2 3p^6

Ne=neon

⚫cr( chromium)

atomic number=24

atomic mass=51.99

⚫cu(copper)

atomic number=29

atomic mass=63.54

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hope it will help you ☺️

silu12 ♥️☺️

be BRAINLY ☑️

Answer 2

Chromium electronic configuration :

(Ar) 3d5 4s1

Copper electronic configuration :

(Ar) 3d10 4s1