Elements in the periodic table that has similar chemical properties are been arranged in vertical direction , and families of these elements are regarded as group.
- The vertical aliment of the elements in the periodic table are this elements that posses similar properties.
- Elements in the same group do have similar chemical properties, for instance Sodium and potassium belongs to alkali metals, they are from s-block.
- They posses chemical properties like high reactivity, they are ready in loosing their outmost electron so they can form cations along with charge,
- they always appear as silvery substance
- The numbering of the Groups is from 1 to 18. If we move from left to right, we have group 1 and 2 which are elements in the s- block,
- then there are ten groups moving from 3 through 12 in the transition block(d- block) then six groups if we move through 13 and 18 in main block.
Hence, families of these elements are regarded as group.
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