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Periodic Table by Mind Map: Periodic Table
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Periodic Table

Groups

Alkali metals

Alkaline earth metals

Inner transition elements

Lanthanides

Actinides

Transition metals

Other metals

Nonmetals

Noble gases

Halogens

Other nonmetals

Period

Row in the table of elements

Periodic Law

the pattern of repeating properties

Each individual element

Atomic Number

Atomic Symbol

Atomic mass

Properties in a group

Alkali metals

silver-colored

soft metals of low density

increasing reactivity

decreasing melting and boiling point

vigorous reactions with water to give out hydrogen gas

one electron in their valence shell

Alkaline earth metals

silver colored

soft metals

react readily with halogens to form ionic salts and with water

higher melting points and boiling points than alkali metals

two electrons in their valence shell

Halogens

high reactivity decrease down the group

At room temperature and pressure, fluorine and chlorine are gases, bromine is a liquid and iodine and astatine are solids