should be scandium. not sure though
It is in group 17.
Radon!
the element belongs to 4th period, 9th group, it is a d block element. the element is cobalt
1s2 2s2 2p6 3s2 3p 4s2
The electronic configuration for aluminum is 1s22s22p63s23p1 .
It is in group 17.
Radon!
That is the element phosphorous
hlkasnh iwhg
the element belongs to 4th period, 9th group, it is a d block element. the element is cobalt
1s2 2s2 2p6 3s2 3p 4s2
The electronic configuration for aluminum is 1s22s22p63s23p1 .
(n-1)d2ns2, where n is the energy level. For example, Titanium's ending electron configuration is 3d24s2.
S [Ne] 3s2 3p4
ns2np5
An element's electron configuration determines its location (group) in the periodic table. It tells us how many valence electrons (s and p sublevel).
It loses 2 electrons and becomes a +2 ion.