Periodic Table With Periods And Groups. This Arrangement Is Called The Periodic Table. The Columns Of The Periodic Table Are Called Groups. Members Of The Same Group In The Table Have The Same Number Of Electrons In The Outermost Shells Of Their Atoms And Form Bonds Of The Same Type. The Horizontal Rows Are Called Periods.

KEYWORDS

alkali arithmetic arrangement atomic atoms bonds columns dobereiner dobereiners electrons element form group groups horizontal law lithium mass masses members metals number outermost pblock periodic periods potassium rows second shells sodium stated table triad triads