00:02
Hi there, in this question we have another true false question and we want to know if the configuration they have written here is the shorthand notation for copper.
00:18
So copper is right here on the periodic table.
00:22
So if we are writing the configuration for it using the noble gas shorthand notation, we want to start off by taking the noble gas from the period before copper, so copper is in period 4.
00:37
So we want the noble gas from period 3 and that is argon.
00:43
So we'll put argon in brackets and then we'll start going across the fourth period until we get to copper.
00:54
So first we'll fill in the s block, s1 and s2, so that would be 4s2.
01:10
And then we recall that the d block which is next, the transition metals are the d block, we recall that they are one energy level behind.
01:22
So we are in the 3d's here and it's in the ninth one, so that would normally be 3d9...