How can we identify the group and period of an element without the hel

1.	How can we identify the group and period of an element without the help of periodic table ?
Answer» And if we want to identify the group than the most important property of group is the increase in sheels in it like k than l and so on but the valence electron will be same . Its simple groups can be identified by valency while periods by subshell Ya by its atomic no and properties of that particular element . We can too find the rest of its corresponding group member by adding the magic nos : 2 , 8 , 8 , 18 , 18 , 32 . For example - hydrogen has atomic no 1 so we will add 2 resulting in lithium , which next member of group 1 alkali metals and so on .. Group goes from top to bottom while period goes from left to right .

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