Finding an element using quantum configuration

[visviva]

havent done this stuff in lile 5-6 years so can't remember half of what to do lel.
the first part i would like a yes/no please, Thanks. Given the quantum numbers (6,2,2,+1/2) what is the element, i said UUB becasue the first two numbers indicate 6D and the second would mean its +2 and positive spin so 6D9 which would indicate UUB?

The actual question I am having problems with is gven [Xe]4f14⁺⁴ whatis the element

Thanks.

 

[Borek]

Quantum numbers alone don't say anything about the element, they characterize an electron which can be present in any (excited need be) element. Is it an outermost electron?

[Xe]4f14⁺⁴

How many electrons in a neutral atom of that element?

 

[visviva]

Thats all that was given, this is why this qustion is dumb, it literally says an element with the electron configurtion [Xe]4F14⁺ is what? so i when to Xe and then to the F block counted 14, minused 4 bcasue of the + 4,

And was the first part Right?

thanks.

 

[Borek]

Actually the later part (the one with [Xe]4f14⁺⁴) is perfectly OK. It was the first part of your post (6,2,2,+1/2) that didn't make sense.

so i when to Xe and then to the F block counted 14, minused 4 bcasue of the + 4

Can you translate it into English?

 

[visviva]

6 represnt the principal quantum number, the first 2 is the angular momentum quantum number, the second two is the magnetic , and the =1/2 is the spin. so for this I am pretty sure, it would be 6D⁵ becasue the 6 principal quantum number and the first means a D orbital, and then it should be 6D⁵ becasue it has a potive spin and is i is 5 becasue the other 2nd two is the 2 for number of orbitals ( -2, -1, 0, 1, 2) so there are 5 electrons so there are 5 electrons so this should be 6D⁵

for the [Xe] part ment to say, started at xenon on the periodic table, because the quantum number is [Xe] 4f14, then i proceeded to the 4f block, and counted 14 elements becasue it is [Xe] 4f14 then minues 4 becasue it is +4 [Xe] 4f14⁺⁴. I am not sure if this makes sense, and I am almost 100% positive this is wrong.

 

[mjc123]

If it was a neutral atom, it would have four more electrons than the 4+ ion, so you count the 14, then add another 4.

 

[visviva]

how would that work, plus 4 indicates loss of electrons since lectrons are negative, your implying that if an atom is neutral and then I become a positively charged ion i gained 4 electrons??

 

[Borek]

How many electrons do you need to add to Na⁺ to make it neutral?

How many electrons do you need to add to Mg²⁺ to make it neutral?

How many electrons do you need to add to Al³⁺ to make it neutral?

How many electrons do you need to add to Whatever⁴⁺ to make it neutral?

 

[visviva]

I think i understand so i did it and got Hafnium for my answer?

 

[Borek]

Looks OK.