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The Periodic Table Of Elements - Coggle Diagram
The Periodic Table Of Elements
Who created?
Dimitri Mendeleev
He discovered a pattern of elements in 1869
He was the Russian chemistry king
How its organized?
The elements are organized by their properties.
Valance electrons?
Metals?
Radioactive?
metalloids?
Nonmetals
Atomic mass?
Protons?
There was a pattern in elements
Metals, metalloids, nonmetals
Nonmetals are Poor conductors, and not shiny
Metalloids are mostly a combination of nonmetals and metals
The Metals are shiny and have good conductivity
The majority of the elements are metals
Also their organized by the number of protons and atomic mass
Alkali Metals
Very reactive, malleable, ductile, good conductors.
One valance electron
First group in the periodic table
Alkaline-earth metals
Smaller atomic radii than alkali metals
Low electrons affinities and electronegatives
Two valance electrons
Transition Metals
Fairly unreactive, malleable
1 or 2 valance electrons which they can lose when they bound with other atoms.
Good electrical conductivity, high melting and boiling points.
Carbon group
A non metal, metalloids and metals
4 valance electrons
Halogens
Highly reactive with alkaline metals and alkaline-earth
seven valance electrons
Low ionization energy
Boron Group
One metalloid, and the rest metals
3 valance electrons
Nitrogen Group
5 valance electrons
Nonmetals, metals and metalloids
Oxygen Group
6 valance electrons
most elements in this group shares electrons
Lanthanides
Silvery white metals
Very reactive
Actinides
Highly electropositive
Combine directly with most metals
Noble gases
Non reactive