Difference between revisions of "Periodic Table"
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===About The Periodic Table=== | ===About The Periodic Table=== | ||
− | : The modern [[Periodic Table]] was arranged by a scientist called [[Mendeleev]]. | + | : The modern [[Periodic Table]] was arranged by a scientist called [[Mendeleev]]. Others had tried to arrange all the [[element]]s before, but [[Mendeleev]] was the first to arrange by both [[Atomic Number]] and [[Chemical Properties of Elements|chemical properties]]. |
: The columns of the [[Periodic Table]] are called [[Group]]s. | : The columns of the [[Periodic Table]] are called [[Group]]s. | ||
: The rows of the [[Periodic Table]] are called [[Period]]s. | : The rows of the [[Periodic Table]] are called [[Period]]s. |
Revision as of 11:21, 30 September 2018
Key Stage 3
Meaning
The Periodic Table is a chart listing all the known elements arranged in order of Atomic Number and in columns of elements with similar properties.
About The Periodic Table
- The modern Periodic Table was arranged by a scientist called Mendeleev. Others had tried to arrange all the elements before, but Mendeleev was the first to arrange by both Atomic Number and chemical properties.
- The columns of the Periodic Table are called Groups.
- The rows of the Periodic Table are called Periods.
Groups
- The elements are arranged groups of similar Chemical Properties.
- Elements have similar Chemical Properties when they have the same number of electrons in the Outer Shell.
Periods
- The periods are arranged by the number of Electron Shells.