Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
MediumWhich one of the following sets of ions represents a collection of isoelectronic species?
- A$N^{3-}, O^{2-}, P^{3-}, S^{2-}$
- B$Li^{+}, Na^{+}, Mg^{2+}, Ca^{2+}$
- C$K^{+}, Cl^{-}, Ca^{2+}, Sc^{3+}$
- D$Ba^{2+}, Sr^{2+}, K^{+}, Ca^{2+}$
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Similar Questions
$X$,$Y$,and $Z$ are elements of the same period and belong to the $p$-block. $Y$ has a positive value of $\Delta_{eg}H$ (electron gain enthalpy),and $Z$ has the highest $2^{nd}$ ionization energy $(I.E.)$ among them. What is the correct order of their atomic numbers?
$(a)$ $X < Y < Z$
$(b)$ $X < Z < Y$
$(c)$ $Y < Z < X$
$(d)$ $Z < Y < X$
$(a)$ $X < Y < Z$
$(b)$ $X < Z < Y$
$(c)$ $Y < Z < X$
$(d)$ $Z < Y < X$
Which of the following orders is correct for the property mentioned in brackets?
Which element among the following is most probable to have the following values?
$\Delta_i H_1 = 419 \ kJ \ mol^{-1}$
$\Delta_i H_2 = 3051 \ kJ \ mol^{-1}$
$\Delta_{eg} H = -48 \ kJ \ mol^{-1}$
$\Delta_i H_1 = 419 \ kJ \ mol^{-1}$
$\Delta_i H_2 = 3051 \ kJ \ mol^{-1}$
$\Delta_{eg} H = -48 \ kJ \ mol^{-1}$
Which of the following properties does not depend on periodicity?
Easy
View SolutionBased on the provided periodic table segment,identify the incorrect statement.
Difficult
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