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Chemistry Unit 1
2 - Basic Ideas About Atoms
Electronic Structure
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Factors affecting Ionisation Energy
AS > Chemistry Unit 1 > 2 - Basic Ideas About Atoms > Electronic Structure
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Bohr
proposed that electrons could only exist in
fixed
energy levels
An
orbital
is a region of
space
where
electrons
are likely to be found
If species have the same
electronic configuration
, they are
isoelectronic
Ionisation energy
is the
amount of energy
needed to remove a
mole
of
electrons
from a mole of
gaseous
atoms , forming
gaseous
cations
Successive
ionisation energy is
removing
more
electrons
from the same atom
Large
jumps in
successive
IE suggests the removed electron must be orbiting a
lower energy value
sub shell
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