How many valence electrons does lithium have? How many does sodium have? Based on your answer, do you think these two elements react in similar ways? Why?

Question

warpedkitten · Answer

They both only have one valence electron.

koikkara · Answer

Any element in group 1 has just one valence electron. Examples include hydrogen (H), lithium (Li), and sodium (Na). Any element in group 18 has eight valence electrons (except for helium, which has a total of just two electrons).  They have the same no. of valence electron each and thus have similar chemical properties. @enderkitty29 

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