Periodic Table of Elements

Chemistry

Nature of Elements

• Hydrogen (1)
• Noble Gases (2,10,18,36,54,86,118) – The noble gases are the opposite of reactive: their electron shells are full, and they do not give up any electrons without a fight. Noble gases can form compounds in a laboratory.
• Semi Metals (5,14,32,33,34,51,52) – The semi metals are hard to nail down they have some properties of both metals and nonmetals. They are used in semiconductors because they are capable of conducting electricity. The conductivity can be controlled by a diode of a laser beam.
• Non Metals (6-9,15-17,35,53,85,117) – The nonmetals are mostly gases. They are very reactive, have low melting points, and do not make good conductors. It can be combined to form compounds.
• Alkali Metals (3,11,19,37,55,87) – The alkali metals are very reactive that single electron in their out shells is likely to jump to another atom.
• Alkaline Earth Metals (4,12,20,38,56,88) – The alkaline earth metals have two electrons in their outer shells, so they are not as reactive as the alkali metals.
• Transition Metals (21-30,39-48, 72,80,104-112) – The transition metals are strong hard, and shiny. They conduct electricity and heat well.
• Poor Metals (13,31,49,81-84,113-116) The poor metals are soft and weak with low melting points. Poor metals are often mixed into alloys.
• Lanthanide Series (58-71) – The lanthanide have so much in common that they are hard to tell apart. Samarium is a lanthanide that used to make powerful magnets.
• Actinide Series (91-103) – The actinides are very radioactive elements. Some occur in nature others have been made in a laboratory.
• Physics Artificial Transmutation (88-109)
• Particle Accelerator (110-118)

Periodic Table