Periodic Classification Flashcards
Elements in Alkali Metals groups
Lithium
Sodium
Potassium
Rubidium
Cesium
Francium
Alkaline Earth Metals
Beryllium
Magnesium
Calcium
Strontium
Barium
Radian
Boron Family
Boron
Aluminum
Gallium
Indium
Thallium
Carbon Family
Carbon
Silicon
Germanium
Tin(Sb)
Lead(Pb)
Nitrogen(Nicogens) Family
Nitrogen
Phosphorus
Arsenic
Antimony
Bismuth
Oxygen(Chalkogens) Family
Oxygen
Sulphur
Selenium
Tellurium
Polonium
Halogens
Fluorine
Chlorine
Bromine
Iodine
Astatine
Noble Gases
Helium
Neon
Argon
Krypton
Xenon
Radon
Normal/Representative elements
S and p-block elements except for noble gases
Typical Elements
Elements of 3rd-period
Ex: Na, Mg, Al, Si, P, S, Cl
Bridge elements
Elements whose properties are a combination of the properties of two elements
Example: Magnesium is a combination of sodium and chlorine.
Diagonal Relationship
Relation between elements of 2nd period and 3rd period which are present diagonally opposite to them
Ex: Li and Mg, Be and Al, B and Si
Transition Elements
Elements of d-block having one unpaired electron either in their ground state or in their combined form
Inner-Transition Elements
F-block elements
There are 28 inner transition elements
Compare the ionic radius of any elements
r anion > r parent > r cation
Ionisation Energy depends upon
1/size, Zeff, penetration power
Metallic Nature depends upon
1/Ionisation Energy
Basic Nature of oxide depends upon
1/Ionisation Energy
Electron Affinity
Energy released or absorbed when a neutral isolated gaseous atom gains an electron
Electron affinity depends upon
1/size, Zeff
Exception in the electron affinity of halogens and oxygen family
Cl>F>Br>I and S>Se>Te>O
What is Electronegativity?
Tendency of an atom to attract a shared pair of electrons towards itself in a covalently-bonded state
E.N. depends upon
1/Size, Zeff, Charge of Cation, 1/charge of anion, percentage s-character
Example of elements that are amphoteric
Beryllium
Tin
Gallium
Aluminum
Zinc
Lead
Example of metalloids in the periodic table
Germanium
Arsenic
Antimony
Selenium
Tellurium
Compare the radius: vanderwaal, covalent and metallic radius.
Vanderwaal> Metallic> Covalent
