Chemistry – Periodic TableMr : AbdulMoaez

Elements may be classified (put into sets) in One way: •metals or non-metals (conductors or non-conductors)

Group I (1) – the Alkali MetalsAll of the elements in Group I are metals.They are soft and easily cut.When freshly cut they have a bright, shiny, silvery appearance.All react vigorously with air and water so are stored under oil.Solutions of their compounds are alkaline in nature.They become more reactive going down the Periodic Table.

Chemists classify elements by arranging them in the Periodic Table.In a group, all the elements present have similar chemical properties.

Elements may be classified (put into sets) in One way: •metals or non-metals (conductors or non-conductors)

Group VII (7) – the HalogensAll are non-metals.Most are very reactive.

They form salts with the metals

Chemists classify elements by arranging them in the Periodic Table.In a group, all the elements present have similar chemical properties.

Elements may be classified (put into sets) in One way: •metals or non-metals (conductors or non-conductors)

Group 0 (or 8) – the Noble GasesAll members are very uncreative gases.

They are used in advertising signs

Chemists classify elements by arranging them in the Periodic Table.In a group, all the elements present have similar chemical properties.

Periodic Table

Periodic TableTransition MetalsThese metals are in the middle of the Periodic Table.

Many are

Parti c le

Proton

Neutron

Electron

Charge Mass W h e r e f o u n d i n a t o m

+1

-1

0

1

1

1/1840

Nucleus

Nucleus

O r b i ti n g o u t s i d e n u c l e u s

Periodic Table

Number of Valance electron=

Number of Group In periodic Table

Periodic Table

Number of Shells =

Number of Periods

Periodic Table

How we could Know theNumber of Valance electron

And shells?

Periodic Table

Of course , we should Know how to make the electronDistribution of the atom … will, How?

Lets take an Example : 11Na Simple, 2.8.1 = 11!!

Periodic Table

The electron distribution is 2.8.1 The valance electron is 1 .. It’s the last no.

Well , about shells , how many number is there? 3 !! So 3 shells

Periodic Table

SO ! 11Na is in group 1And in period 3

Periodic Table

SO ! 11Na is in group 1And in period 3

Periodic Table

Finally , How we could know the no of neutrons in Each atom?

Atomic No. – Mass No.For 23Na

11 23-11 = 12

Periodic Table

The neutron of Na ( Sodium ) is 12!!

Well , that’s just a simple partThe periodic table ,, there is

A lot things more..…

Periodic Table

Lets move to the QUIZ PART!!

Periodic Table

How we could Know the number of group and period ?

The electron Distribution of 8O is ? And what’s its Group and period?

What do they call Group 1? What do they call group 7? What do they call group 8?

Thanks For Watching!

By Yasser Albajjeh!!