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An element with atomic no 3 combines with another element with atomic number 17, What would be the formula of the compound?
  • a)
    BeCl2
  • b)
    LiCl
  • c)
    NaCl
  • d)
    Lif
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
An element with atomic no 3 combines with another element with atomic ...
An element with atomic no 3 has electronic configuration 2,1 i.e. it can lose one electron readily to complete its duplet. 
​The element with atomic no 17 has electronic configuration 2,8,7 and is ready to accept one electron to complete its octet. 
So,  both of them with valency 1 combine and the formula is LiCl. 
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An element with atomic no 3 combines with another element with atomic number 17, What would be the formulaof the compound?a)BeCl2b)LiClc)NaCld)LifCorrect answer is option 'B'. Can you explain this answer?
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