copper
The actual for copper is 3d10 4s1. 3d10 4s2 is Zinc. 3d8 4s2 is Nickel. Among these Transition Metals [in this book], 3d9 4s2 is not listed. Help pls.
A property of that element. An unstable element. A radioactive element
Potassium is a chemical element.
[object Object]
Ar4s2 belongs to the element calcium (Ca).
copper
chromium (Cr) and copper (Cu)chromium has 4s1,3d5 instead of 4s2,3d4 and copper has 4s1,3d10 instead of 4s2, 3d9
[Ar] 4s2 3d9
The binary representation is : 1111011001
The abbrieviated electron configuration of copper is [Ar] 4s23d9
The actual for copper is 3d10 4s1. 3d10 4s2 is Zinc. 3d8 4s2 is Nickel. Among these Transition Metals [in this book], 3d9 4s2 is not listed. Help pls.
The electron configuration of copper(II) is [Ar] 3d9 . Copper is [Ar] 3d10 4s1
Because having a half-filled s sublevel, such as 4s1, followed by a filled d sublevel, such as 3d10 is more stable than having a filled s sublevel, such as 4s2, followed by a d sublevel that is almost full, such as 3d9, which is very unstable.
The electronic configuration od Cu is [Ar] 3d10 4s1 This is an exception to the aufbau principle which would predict [Ar] 3d9 4s2.
Cobalt has 9 valence electrons and generally cant lose 9 electrons to achieve the noble gas configuration.
The electron configuration of copper is 1s22s22p63s23p63d104s1.