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Which of the following metal requires radiation of highest frequency to cause emission of electrons?
  • a)
    Na
  • b)
    Mg
  • c)
    K
  • d)
    Ca
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which of the following metal requires radiation of highest frequency t...
As the alkali metals have minimum ionisation potential in the periodic table, secondly ionisation potential decreases on moving top to bottom in periodic table, thus Mg has highest ionisation enthalpy among the given elements, hence it requires radiation of highest frequency to cause emission of electrons.
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Which of the following metal requires radiation of highest frequency to cause emission of electrons?a)Nab)Mgc)Kd)CaCorrect answer is option 'B'. Can you explain this answer?
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