periodic table Online Test

how many rows are there in modern periodic table


which block-elements are called transition elements?


group seven A elements are called


which element has atomic number 48


how are the elements arranged in periodic table


what electron affinity do inert gases have


which of the following has the highest electron affinity


most metallic element in the first group


valency of inert gases except helium is


hydgrogen












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Discussion

yamuna

isnt sevenA group Mn,Tc,Re,107????

halogens are i guess VII-B elements????

4102 days 12 hours 42 minutes ago

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