Question

According to the Periodic Law of elements, the variation in properties of elements is related to their

A. nuclear masses
B. atomic numbers  
C. nuclear neutron-proton number ratios
D. atomic masses
Answer :   atomic numbers
Solution :
According to modern periodic law, the properties of the elements are repeated after certain regular intervals when these elements are arranged in order of their increasing stomic numbers.

Releted MCQ Question on
Inorganic Chemistry >> Classification of Elements and Periodicity in Properties

Releted Question 1

The correct order of second ionisation potential of carbon, nitrogen, oxygen and fluorine is

A. $$C > N > O > F$$
B. $$O > N > F > C$$
C. $$O > F > N > C$$
D. $$F > O > N > C$$
View Answer
Releted Question 2

The element with the highest first ionization potential is

A. boron
B. carbon
C. nitrogen
D. oxygen
View Answer
Releted Question 3

The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by

A. $$14.6,13.6\,$$
B. $$13.6,14.6$$
C. $$13.6,13.6$$
D. $$14.6,14.6$$
View Answer
Releted Question 4

Atomic radii of fluorine and neon in $$\mathop {\text{A}}\limits^ \circ $$ngstorm units are respectively given by

A. $$0.72,1.60$$
B. $$1.60,1.60\,$$
C. $$0.72,0.72\,\,$$
D. None of these values
View Answer

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Classification of Elements and Periodicity in Properties

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Physical ChemistrySome Basic Concepts in ChemistryStoichiometryStates of Matter Solid, Liquid and GasAtomic StructureChemical ThermodynamicsSolutionsSolid StateSurface ChemistryChemical EquilibriumIonic EquilibriumChemical KineticsRedox ReactionElectrochemistryNuclear Chemistry
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