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X, Y and Z are three p-block elements in the second row of the periodic table, with electron affinities (in kJ/mol) of −15, −142 and −333, respectively. The correct statement among the following, is
  • a)
    Y has the highest first ionization energy.
  • b)
    X has the most number of p-electrons.
  • c)
    X has the highest proton affinity.
  • d)
    Z has the highest electronegativity.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
X, Y and Z are three p-block elements in the second row of the periodi...
X, Y, and Z are three p-block elements in the second row of the periodic table, with electron affinities (in kJ/mol) of:

X: -200 kJ/mol
Y: -100 kJ/mol
Z: +100 kJ/mol
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Community Answer
X, Y and Z are three p-block elements in the second row of the periodi...
  • X, Y, and Z are three p-block elements in the second row of the periodic table, with electron affinities (in kJ/mol) of −15, −142, and −333, respectively.
  • As atoms with high electron affinity have a higher tendency to accept the electron, Z has the highest electron affinity due to the highest amount of energy is released when an electron is added to the outer cell of the element.
  • The element with high electronegativity has a high tendency of electron affinity.
  • As, the electron affinities of the elements follow the order
​Z>Y>X, thus electronegativity follows the order ​Z>Y>X.
  • Thus, Z has the highest electronegativity.
Hence, the correct statement among the following, is Z has the highest electronegativity.
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X, Y and Z are three p-block elements in the second row of the periodic table, with electron affinities (in kJ/mol) of −15, −142 and −333, respectively. The correct statement among the following, isa)Y has the highest first ionization energy.b)X has the most number of p-electrons.c)X has the highest proton affinity.d)Z has the highest electronegativity.Correct answer is option 'D'. Can you explain this answer?
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