Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

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What are isotones?

Important Questions on Structure of Atom

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

Which of the following are isoelectronic species?

I. $\overset{+}{C} H_{3}$

II. ${NH}_{2}^{-}$

III. ${NH}_{4}^{+}$

IV. ${NH}_{3}$

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

B e^{2 +}

is isoelectronic with which of the following ions?

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

The number of protons, neutrons and electrons in

_{71}^{175} Lu

, respectively, are

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

The product obtained after a positron emission from

{}_{31}{Ga}^{68}

is

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

The isoelectronic pair is:

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

In the nuclear reaction

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

is

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

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)

is

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

From the following pairs of ions which one is not an iso-electronic pair?

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

Among the following, the set of isoelectronic ions is

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

O^{2 -}

is isoelectronic with

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

In the following sets of ions, which one is not isoelectronic with the rest of the species?

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

Among the following species which option contains all isoelectronic species?

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

Which of the following elements you need to remove to form an isotone family ?

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

An element with mass number

181

contains

32 %

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

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

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?

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

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

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

The number of protons, neutrons and electrons in

{}_{6}^{13}C

respectively are

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

The isoelectronic set of ions is:

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

The pair of atoms having the same number of neutrons is

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Chemistry>Physical Chemistry>Structure of Atom>Isotopes, Isobars and Isotones

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