In this file, you can find 12 pages of notes for the entire Inorganic Chemistry section of the AS Level AQA Chemistry course - aimed at year q2 students. Please find other documents in my profile and good luck with your studies!
, PERIODICITY
of physical or chemical properties across a
period
periodicity
trends
repeating
-
THE PERIODIC TABLE :
Group 1- a l ka l i metals
Group 7-halogens
2- metals
Group alkaline earth
Group 0-noble
gases
D-block -
transition metals
A T O MIC RADIUS
&
decreases across a period
·
number of protons increases
attracting outer electrons in the same shell more
(attraction increases)
·
repeats across all periods
FIRST I O N I S AT I O N >
-
N E R G Y
A
1 of 1
*
energy required to remove mole electrons from
atoms the
mole of in
gaseous state
+
X - X -
e
(g) (g)
*
SAME SHIELDING
S
Li Be B [ N 8 F
&
across a period increases in
general
&
Nuclear charge increases across a period
attraction to the outer electron
There is
greater electrostatic
&
&
More energy required to remove it
·
EXCEPTION :
- removed from a p sub-shell which is of higher energy : less energy is required
B to Be
↑ EXCEPTION :
pair of electrons in a p-orbital which repel : less energy required
N o
+ 0
ELEMENTS IN PER 10 D 3
ELEMENT FORMULA STRUCTURE BONDING
Sodium Na Giant lattice
metallic metallic
Magnesium M9 Giant metallic lattice metallic
Aluminium metallic lattice
Al Giant metallic
Silicon Si Macromolecular covalent
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