Which elements in groups $1$ to $17$ differ in many respects from the other elements of their respective groups?

  • A
    The first element of each group
  • B
    The last element of each group
  • C
    The middle element of each group
  • D
    The transition elements

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Similar Questions

Represent different types of periodic properties in the periodic table.

Consider the following statements:
$(i) Na_2O < MgO < ZnO < P_4O_6$ - Acidic property
$(ii) F > Cl > Br$ - Electron gain enthalpy
$(iii) M^{2-} > M^{-} > M^{+} > M^{2+}$ - Ionic size
$(iv)$ The second ionisation enthalpy of $Cu$ is more than the second ionisation enthalpy of $K$.
Which of the following is the correct representation of True $(T)$ / False $(F)$ for the given statements?
$(a)$ $T, T, F, F$
$(b)$ $F, T, F, T$
$(c)$ $F, F, F, T$
$(d)$ $T, F, T, F$

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:

Consider the following four elements which are represented according to the long form of the periodic table. Here $W, Y$ and $Z$ are left,up and right elements with respect to the element $X$. $Y$ belongs to the $16^{th}$ group and $2^{nd}$ period. Then,according to the given information,identify the incorrect statement regarding the given elements.

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Consider the following orders :-
$(I)$ $Li > Na$ (Reducing nature)
$(II)$ $BF_3 > BCl_3 > BBr_3 > BI_3$ (Rate of hydrolysis)
$(III)$ $B > C > N > O > F$ ($1^{st}$ ionization energy)
$(IV)$ $CCl_4 > SiCl_4$ (Boiling point)
The $CORRECT$ order$(s)$ are :-

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