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Chemistry by Franchessailine,Heymi,and Zuleha (Energy Levels (3 (can…
Chemistry
by Franchessailine,Heymi,and Zuleha
Periodic Table
Periods
Groups
18 Groups
7 periods
Elements
each element is listed in a specific location that make the atomic structure.
Transition Elements
Groups 3-12
Most are combined with elements in ores
several are used as catalysts
substances that make reactions occur faster withought changing itself
Representative Elementts
Groups 1,2 and 13-18
Carbon Group
A carbon group is a periodic table group consisting of carbon, silicon, germanium,tin, lead, and flerovium.
Oxygen Family
the first two members of group 16,oxygen and sulfur,are essential for life.
Boron Family
The chemical elements in group 13 .
Halogen Group
All the element in group 17 are nonmetals except for astatine, which is a radioactive metalloid.
Alkaline Earth Metals
is denser and harder and has higher melting point than the alkali metal in the same period.
Nobel Gasses
any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table. They were long believed to be totally unreactive but compounds of xenon, krypton, and radon are now known.
Alkaline Metals
silver solids with low densities and low melting points.
Iron Triad
Composed of iron ,cobalt, and nickle
Have magnetic properties
Part of the Transition Elements
Inner Transition Elements
Lanthanides
soft metals that were once thought to be
Actanides
radioactive elements
synthetic elements
electron cloud
Energy Levels
3
can hold up to 18 electrons
2
can hold up to 8 electrons
4
can hold up to 32 electrons
1
can hold up to 2 electrons
electron dot diagram
ion
compound
ionic bond
is the type which generates two oppositely charged ions.
the metal loses electrons to become positetively charged cation, where as the non metal accepts those electron to become negatively negatively charged ion.
metalic bond
tend to high melting point and boiling point.
http://chem.libretexts.org/Core/Organic_Chemistry/Fundamentals/Ionic_and_Covalent_Bonds
cemical bond
molecule
polar bond
chemical formula
covalent bond
is the sharing of electron between atoms.
includes of sigma and pi orbitals, therefore covalent bonds leads to formation of single, double, triple and quandruple bonds.
http://chem.libretexts.org/Core/Organic_Chemistry/Fundamentals/Ionic_and_Covalent_Bonds