3.2.4.1 - General Knowledge Of Period 3 Elements
Pehod3 elements Physical Properties
pehodn the 3rdrowonthepenodic table
this consists ofthe elements;
* NC
sodium: D
&Phosphows:
↑ Magnesium Mg
=
* Sultr-S
& ALUMINIM:Al chloune:
* CL
a silicon =
5; *Argon Ar
=
ATOMIC RACUS
As you go across Penod 3, the atomic rads decreases
they are not
gaching new electral shells
& Only filling 39ad3p orbitalS
their nuclearcharge increases
* stronger forces attractic
of Between the positive nucleus and US
elections
Melting 11 Boiling Point
As you go across Pehod 3, the bolling increases
pot until silicon
NG, Mg + Al have metallic bonding
* strong electrostatic attractia between the positive
forces of
electrons
Ions and the delocalised
* energy
lots of requiredto breakthose bonds
Si, p.5, C1 +Ar have rander walls forces
* intermolecular force
weakest
little energy neededto overcome these tones
*
Pehod3 elements Physical Properties
pehodn the 3rdrowonthepenodic table
this consists ofthe elements;
* NC
sodium: D
&Phosphows:
↑ Magnesium Mg
=
* Sultr-S
& ALUMINIM:Al chloune:
* CL
a silicon =
5; *Argon Ar
=
ATOMIC RACUS
As you go across Penod 3, the atomic rads decreases
they are not
gaching new electral shells
& Only filling 39ad3p orbitalS
their nuclearcharge increases
* stronger forces attractic
of Between the positive nucleus and US
elections
Melting 11 Boiling Point
As you go across Pehod 3, the bolling increases
pot until silicon
NG, Mg + Al have metallic bonding
* strong electrostatic attractia between the positive
forces of
electrons
Ions and the delocalised
* energy
lots of requiredto breakthose bonds
Si, p.5, C1 +Ar have rander walls forces
* intermolecular force
weakest
little energy neededto overcome these tones
*
