electron configuration Flashcards
the highest energy orbitals are called __________
valance orbital or shell
The electrons in the ___________are the ones that
are used first for bonding and forming ions.
valence orbital
the electrons in the orbitals closest to the nucleus do not readily participate
in bonding except _______
Cr
the atomic size or atomic
radius.
periodic trend
positive ion or cation has more __________than _________
proton than electron
negative ion or anion has more _________than _________
electron than proton
electron configuration steps :
1-determine the atomic number
2-determine the section so we can know the end
determine the atomic number :
determine the section of the element :
Only ________and ________ are in their electron configuration; they do not have 3d before 4s
calcium and potassium
from ______ to _____, in their electron configuration, there is 3d, then 4s
Sc to Zn
Only _______and ______ in their electron configuration; they do not have 4d before 5s
Rb and Sr
__________to ______in their electron configuration, there is 4d, then 5s
From Y to Cd
_______does not have 5s and the end is 4d
Pd
in their electron configuration; they do not have 5d before 6s :
1-Cs
2-Ba
3-Pr
4-Nd
5-Pm
6-Sm
7-Eu
8-Tb
9-Dy
10-Ho
11-Er
12-Tm
13-Yb