2.2.1 electron structure Flashcards
how many electrons fill up shell 1
2
maximum number of electrons in a shell formula
2n^2
atomic orbital
region around nucleus that can hold up to two electrons, with opposite spins
4 types of orbitals
s-,p-,d-,f-orbitals
what shape is s-orbitals
sphere
what shape is p-orbitals (single and clustered)
- (name all three)
- the orbitals are ____ to each other
- dumbell/ flower shape
- horizontal {Px}, vertical {Py} and diagonal {Pz}
- 90 degrees
order of sub shell filling
1s>2s>2p>3s>3p>4s>3d>4p>5s>4d>5p
rule to remember with the order
3d ishigher in energy than 4s and so gets filled and emptied after the 4s
s has_ orbitals and holds up to _ electrons
1, 2
p has_ orbitals and holds up to _ electrons
3, (2x3) 6
d has_ orbitals and holds up to __ electrons
5, (2x5) 10
- for orbitals with the same energy,
occupation ______ before ________ due to ______ ________ - explain spin pairing
- singly, pairing, electron repulsion
- when 2 electrons occupy same orbital they ‘spin’ in opposite directions
A s block element is
one whose outer electron is
filling a ____ ______ and ect.
s-sub shell
f has_ orbitals and holds up to __ electrons
7, (2x14)
shell number 1:
1) sub shells-
2) number of electrons-
1) 1s
2) 2
shell number 2:
1) sub shells-
2) number of electrons-
1) 2s,2p
2) 2 + (2x3)6 = 8
shell number 3:
1) sub shells-
2) number of electrons-
1) 3s,3p, 3d
2) 2 + (2x3)6 + (2x5)10 = 18
the higher the shell number the ______ ____ from nucleus and they also have a ______ ______
further away ,higher energy
which number do you use for electron configuration sm
atomic number
with ions just ___ or ______ _______ from the ______ energy level
add, remove, highest
noble gas electron configuration
using noble gases as a shorthand way e.g. K- [Ar]4s1
s-block elements
group 1, group 2, H, He
p-block elements
group 3, 4, 5, 6, 7, 0 excluding He
d-block elements
transmition metals
