Zusammenfassung der Ressource
Periodic Classification of Elements
- Laws
- Dobberinor Law
- the three elements in trads are
placed in increasing order of atomic
mass. The Middle element atomic
mass is roughly average of first and
last elkement's atomic mass
- NewLands Law
- The elements are placed in
increasing order of atomic
mass. the every Eighth
element have a similar
porperty as first element
- Mendeleevs Laws
- The properties of element
is periodic functions of
there Atomic Mass
- Modren Law
- The properties of element is
periodic functions of there
Atomic number
- Groupnumber
- In periodic law there are 18 verticle
columns known as group
- periods
- In periodic law there are 7 horizontal rows know as
'Periods"
- Atomic Size
- The term atomic size refers to the radius of an
atom. The atomic size may be visualised as the
distance between the certer of the nuclues and the
outtermost shell of an isolated atom
- ionization
- It is minimum energy require to
remove the outtermost electrons
is called Ionization Energy