Which of the following statements is incorrect?

  • A
    Density increases across a period and decreases down a group as atomic number increases.
  • B
    Ionization enthalpy depends on the type of orbital from which the electron is removed.
  • C
    Generally,electron gain enthalpy decreases down a group.
  • D
    Up to group $14$,the ratio of charge to size remains approximately the same for elements of the second and third periods due to diagonal relationship.

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Similar Questions

Which of the following statements are true?
$A.$ Unlike $Ga$ that has a very high melting point,$Cs$ has a very low melting point.
$B.$ On Pauling scale,the electronegativity values of $N$ and $Cl$ are not the same.
$C.$ $Ar$,$K^{+}$,$Cl^{-}$,$Ca^{2+}$,and $S^{2-}$ are all isoelectronic species.
$D.$ The correct order of the first ionization enthalpies of $Na$,$Mg$,$Al$,and $Si$ is $Si > Al > Mg > Na$.
$E.$ The atomic radius of $Cs$ is greater than that of $Li$ and $Rb$.
Choose the correct answer from the options given below

Identify the incorrect order corresponding to the mentioned property.

In a period, the first ionisation enthalpy of the element at the extreme left and the negative electron gain enthalpy of the extreme right element, except noble gases, are respectively.

Identify the incorrect set$(s)$ among the following periodic trends:

Difficult
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Match List-$I$ with List-$II$:
List-$I$ (Atomic Number) List-$II$ (Block of periodic table)
$A$. $37$ $I$. $p$-block
$B$. $78$ $II$. $d$-block
$C$. $52$ $III$. $f$-block
$D$. $65$ $IV$. $s$-block

Choose the correct answer from the options given below:

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