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Which of the alkaline earth metals has the smallest electronegativity

1 Answer

4 votes

Answer:-Barium(Ba)

Step-by-step explanation:-

Electro negativity means the ability to attract ans take electron.(Highest in Fluorine)

  • The halogens has highest EN than other families as they need only 1 electron to complete octet.
  • Alkaline earth metals such as Be,Mg,Ca,Sc,Ba,Ra.
  • They have 2 electrons in their valence shell but .

If we see their Electronic Configuration


\\ \rm\hookrightarrow Be=1s^22s^2


\\ \rm\hookrightarrow Mg=1s^22s^22p^63s^2

And so on

  • The s subshell is completely filled (Duplet)
  • So they are more stable .
  • So they less attract electron as they has less EN
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