Chemistry, asked by tiarax1853, 1 year ago

Atomic number , electronic configuration , valency and atomic mass of first 20elements

Answers

Answered by physics98

0

kindly go through periodic table...

Answered by karimmallickoud4v4

0

https://www.proprofs.com/flashcards/story.php?title=first-20-elements-atomic-number-mass

visit this site

i hope u will get what u r searching for

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