Periodic Table

1.What is periodic Table?. 2.History of periodic Table. 4.Properties of different types of element. 3.What types of element is in the periodic table and example

Periodic Table The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number (number of protons), electron configurations, and recurring chemical properties.

History of Periodic Table Dmitri Mendeleev In 1869 Dmitri Mendeleev, gives us first successful periodic table. In 1871 Mendeleev published his periodic table in a new form, with groups of similar elements arranged in columns rather than in rows.

Al k al i Transitio n Metal Nobl e Gas Alkaline earth metal Diatomic Non- metal Halogens Polyatomic Non-metal Lan­thanide series Acti nid e Post-​transition metal Metalloid

Al k al i Lithium Sodium Potassium

Alkaline earth metal Beryllium Calcium Radium

Transitio n Metal

 In Transition Metal, an element whose atom is partially filled d sub-shell.

Properties of Transition Metal  Color in transition-series metal compounds is generally due to electronic transitions.  A metal-to-ligand charge transfer (MLCT) transition will be most likely when the metal is in a low oxidation state and the ligand is easily reduced.

Block Elements There are four types block element. Such as- 1.S-Block Element. 2.P-Block Element. 3.D-Block Element. 4.F-Block Element. 1.S-Block Element. S-Block Element

P-Block Element

D-Block Element

F-Block Element

Dependent properties of element Electronegativity.  Electronegativity is the tendency of an atom to attract electrons. Ionization Energy.  The first ionization energy is the energy it takes to remove one electron from an atom, the second ionization energy is the energy it takes to remove a second electron from the atom and so on. Radius of element. Melting and Boiling. Electron affinity.  The electron affinity of an atom is the amount of energy released when an electron is added to a neutral atom to form a negative ion.

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