What is the electronic configuration of copper ??​

[Ar] 3d¹⁰ 4s¹

Atomic number: 29

Symbol: Cu

Atomic mass: 63.546 u

Explanation:

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[Ar] 3d¹⁰ 4s¹

3( -2x + 4)

let's equal the given soln to 0

3(-2x+4) = 0

-6x + 12 = 0

-6x + 12 - 12 = 0-12

-6x = -12

we divide both sides by -6

-6x/-6 = -12/-6

x = 2

Step-by-step explanation:

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