Match the following species with the correct number of electrons present in them: Species Number of Electrons ( i ) Be 2 + ( a ) 0 ( ii ) H + ( b ) 10 ( iii ) Na + ( c ) 2 ( iv ) Mg + ( d ) 11 ( e ) 4

( i - c ) , ( i i - a ) , ( i i i - b ) , ( i v - d )

( i - d ) , ( i i - c ) , ( i i - b ) , ( i v - a )

( i - a ) , ( i i - b ) , ( i i i - c ) , ( i v - d )

( i - e ) , ( i i - d ) , ( i i - a ) , ( i v - c )

atoms of same elements having different mass number

atoms of different elements having same mass number

atoms of same elements having same mass number

atoms of different elements having same number of neutrons

Match List I with List II List I Industry List II Waste Generated (A) Steel plants (I) Gypsum (B) Thermal power plants (II) Fly ash (C) Fertilizer Industries (III) Slag (D) Paper mills (IV) Bio-degradable wastes Choose the correct answer from the options given below :

A - III , B - II , C - I , D - IV

A - III , B - IV , C - I , D - II

A - II , B - III , C - IV , D - I

A - IV , B - I , C - II , D - III

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The isotope that causes skin disease is -

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Important Questions on The p-Block Elements

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Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

Identify the incorrect statement :

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The following statements concern elements in the periodic table. Which of the following is true?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

In the nuclear reaction

{}_{13}{Al}^{27} + {}_{2}{He}^{4} ⟶ {}_{14}X^{30} + {}_{1}H^{1}, X

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The masses of an electron, a proton and a neutron respectively will be in the ratio

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The pair of atoms having the same number of neutrons is

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

Consider a hypothetical case in which the charge of a proton is twice as that of an electron. Using this hypothetical case, how many protons

(P),

neutrons

(N)

and electrons

(E)

would a neutral

{}^{23}{Na}

atom contain?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

An element with mass number

181

contains

32 %

more neutrons as compared to protons. What is the symbol of that element?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The nitride ion in lithium nitride is composed of

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

Hydrogen has three isotopes

(A), (B)

and

(C) .

If the number of neutron(s) in

(A), (B)

and

(C)

respectively, are

(x), (y)

and

(z),

the sum of

(x), (y)

and

(z)

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The number of electrons, protons and neutrons in a species are equal to

10, 11

and

12

respectively. The proper symbol-of the species is

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The number of protons, neutrons and electrons in

{}_{6}^{13}C

respectively are

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The correct order of electron gain enthalpy is:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

Match the following species with the correct number of electrons present in them:

Species	Number of Electrons
$(i) {Be}^{2 +}$	$(a) 0$
$(ii) H^{+}$	$(b) 10$
$(iii) {Na}^{+}$	$(c) 2$
$(iv) {Mg}^{+}$	$(d) 11$
	$(e) 4$

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

Isotopes are

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Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The introduction of a neutron into the nucleus of an atom would lead to a change in

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Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

Which of the following pairs of iron are isoelectronic and isostructural?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The fundamental particles present in the nucleus of an atom are

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

The number of protons, neutrons and electrons in

_{71}^{175} Lu

, respectively, are

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

Match List I with List II

	List I Industry		List II Waste Generated
(A)	Steel plants	(I)	Gypsum
(B)	Thermal power plants	(II)	Fly ash
(C)	Fertilizer Industries	(III)	Slag
(D)	Paper mills	(IV)	Bio-degradable wastes

Choose the correct answer from the options given below :

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Atomic and Physical Properties of Group 16 Elements

In the long form of the periodic table, the valence shell electronic configuration of

5 s^{2} 5 p^{4}

corresponds to the element present in:

The isotope that causes skin disease is -

Important Questions on The p-Block Elements

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