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Bookmark or Share- Periodic table - Elements, Groups, Blocks | BritannicaThere follow two periods of 18 elements each: the first long period, from potassium 19, to krypton, 36; and the second long period, from rubidium, 37, to xenon, 54.
- Period (periodic table) - WikipediaA period on the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells . Each next element in a period has one more proton and is less metallic than its predecessor.
- Periodic Table Groups and Periods - Science Notes and ProjectsGroups and periods organize elements on the periodic table of the elements. A group is a vertical column down the periodic table, while a period is a horizontal row across the table. Both groups and periods reflect the organization of electrons in atoms.
- Periods in Periodic table Explained! (With 1-7 Period Names)Period 1: Shortest period Period 1 of the periodic table is given the name shortest period because there are only two elements in period 1. The elements of the shortest period are shown in table below.
- List of Elements by Group and Period - Atomic NumberList of elements by group and period values. Learn the elements of the periodic table with element properties.
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