Periodic table of elements

Alkali Metals

Lithium

Sodium

Potassium

Rubidium

Cesium

Francium

• Alkali metals are among the most reactive metals• All of the alkali metals are found naturally in

nature• They also have low boiling and melting points

and are less dense than most elements

Alkali Earth metals

Beryllium

Magnesium

Calcium

Strontium

Barium

Radium

• Two electrons in the outer shell• Low electron affinities• Low electronegativity's

Noble Gases

Helium

Neon

Argon

Krypton

Xenon

Radon

• The noble gases are used in industry in arc welding

• They are extremely rare in nature• These gases were not discovered until the last

five years of the 1800s

Non-metals

Hydrogen

Carbon

Nitrogen

Oxygen

Phosphorus

Sulfur

Selenium

• substance that does not have such characteristic properties of metals

• The atoms of nonmetals generally are small and contain relatively large numbers of electrons

• These elements have few physical properties in common

Halogens

Fluorine

Chlorine

Bromine

Iodine

Astatine

• Halogens form diatomic molecules in their elemental states

• Chlorine was the first halogen to be discovered in 1774

• Halogens are used in everyday life there our water are toothpaste lots of things

Rare Earth Elements

Terbium

Dysprosium

Holmium

Protactinium

Uranium

Neptunium

• Scandium is found in most rare earth element• Rare earths are used as catalysts, phosphors, and

polishing compounds• Lanthanum is used for such as night vision goggles

Metalloids

Boron

Silicon

Germanium

Arsenic

Antimony

Tellurium

Polonium

• Ionization energies between those of metals and nonmetals

• Possess some characteristics of metals/some of nonmetals

• Reactivity depends on properties of other elements in reaction

Transition Metals

Scandium

Titanium

Vanadium

Chromium

Manganese

Iron

Cobalt

• The transition metals are the metallic elements that serve as a bridge, or transition, between the two sides of the table.

• Not all d block elements count as transition metals• These elements are very hard, with high melting

points and boiling points

Other Metals

Aluminum

Gallium

Indium

Tin

Thallium

Lead

Bismuth

• They are solid metal under standard conditions.• Like most metals they are malleable, ductile, and good

conductions of heat and electricity.• They have a fairly high density.• In comparison to transition metals, they generally are softer

and have lower melting and boiling points.

The Periodic table of elements