👤

Which statement about copper is incorrect?
Select one:

a.
the electronic configuration of copper atoms is 1s22s22p63s23p64s13d10

b.
the electronic configuration of Cu+ is 1s22s22p63s23p63d10

c.
the electronic configuration of copper atoms is 1s22s22p63s23p64s23d9

d.
the electronic configuration of Cu2+ is 1s22s22p63s23p63d9​