The interrelationship between matter and energy was given by

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The interrelationship between matter and energy was given by

A. Rutherford

B. Joule

C. de Broglie

D. Einstein

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The orbitals with maximum number of possible orientation is:

A. s

B. d

C. f

D. p

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The interrelationship between matter and energy was given by

A. Rutherford

B. Joule

C. de Broglie

D. Einstein

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The fundamental particle that has least mass is

A. meson

B. alpha-particle

C. electron

D. neutron

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Charge on an electron was shown by

A. J. J. Thomson

B. Kirchoff

C. Ohm

D. M.Planck

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The number of unpaired electrons in a chromic ion $C r^{+ 3}$ (atomic number 24) is

A. 6

B. 4

C. 3

D. 1

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The wavelength of an electron

A. is equal to that of light

B. remains constant with velocity

C. decreases with an increasing velocity

D. increases with an decreasing velocity

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The charge on an atom of ${}_{13}^{27}A l$ is

A. +40

B. +27

C. +14

D. Zero

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Frequency of the wave having wave number $20000 c m^{- 1}$ is

A. $6 \times 10^{12} s e c^{- 1}$

B. $6 \times 10^{14} s e c^{- 1}$

C. $3 \times 10^{14} M H z$

D. $4 \times 10^{6} H z$

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The number of unpaired electrons in fluorine atoms is/are

A. 4

B. 2

C. 1

D. 0

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Electronic configuration of $C u^{+}$ is

A. $[A r] 3 d^{9}$

B. $[A r] 3 d^{10}$

C. $[A r] 3 d^{9} 3 s^{2}$

D. $[A r] 3 d^{7} 4 s^{1} 4 p^{1}$

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The angular momentum of the moving electron is equal to

A. $\sqrt{n h}$

B. $\frac{h^{2}}{2 π}$

C. $\frac{n h}{π}$

D. $\frac{n h}{2 π}$

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The wavelength of an electron moving with a velocity $5 \times 10^{5} m s e c^{- 1} i s (h = 6.63 \times 10^{- 34} k g m^{2} s e c^{- 1})$

A. $11.6 \times 10^{- 5} m$

B. $11.6 \times 10^{- 9} m^{- 1}$

C. $14.6 \times 10^{- 5} m$

D. $1.46 \times 10^{- 9} m$

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In an atom of hydrogen, which of the following orbitais has the lowest energy for an electron present in it?

A. 3r

B. 2p

C. 4p

D. 2s

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No two electrons in an atom can have the same values of all four quantum numbers according to

A. Hund's rules

B. Flemming rule

C. Pauli's exclusion principle

D. Bohr theory

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A dipositive ion $Z^{+ +}$ has $2 e^{-}$ in the K shell, 8 e~ s in the L shell and $8 e^{-}$ in the M shell. Atomic number of Z is

A. 19

B. 20

C. 16

D. 15

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The number of unpaired electrons in the ground state of chromium is

A. 1

B. 6

C. 7

D. 2

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The number of neutrons in the deuterium atom is

A. 16

B. 3

C. 1

D. 0

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Which elements is represented by the following electronic configuration?

A. Nitrogen

B. Oxygen

C. Fluorine

D. Neon

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Which of the following has the highest mass?

A. Neutron

B. Alpha particle

C. Electron

D. Deuterium

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For a given energy level the number of orbitals is equal to

A. $n^{2}$

B. $2 l + 1$

C. $4 (2 l + 3)$

D. $\sqrt{2 n^{3}}$

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The relationship between energy of a radiation and its frequency was given by

A. Planck

B. Rutherford

C. Einstein

D. Joule

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The maximum number of electrons in a sub-energy level is equal to

A. $4 (2 l + 1)$

B. $2 (2 l + 1)$

C. $2 n^{2}$

D. $n^{3}$

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$β$ rays are a stream of

A. He

B. electrons

C. positron

D. neutrons

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If value of h is taken as $10^{- 34} k g m^{2} s e c^{- 1}$ , the de-Broglie wavelength of a particle of mass $10^{- 31}$ having velocity $10^{9} c m s e c^{- 1}$ is

A. 0.01 m

B. 2 nm

C. 0.1 nm

D. $15 Å$

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When the electron is excited from K level to M level we get

A. $γ$ - rays

B. cathode rays

C. continuous spectra

D. absorption spectra

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Which of the following weighs the least?

A. 1 g of $C O_{2}$

B. 2 litres of $C O_{2}$ at N.T.P.

C. $3.01 \times 10^{11}$ molecules of $C O_{2}$

D. $3.01 \times 10^{22}$ atoms of carbon

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The ion that is isoelectronic with CO is

A. $C N^{-}$

B. ${O_{2}}^{+}$

C. ${O_{2}}^{-}$

D. ${N_{2}}^{+}$

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The possible values of l for an s orbital are

A. -1, +1

B. 0 to 2

C. -2 and + 1

D. 0

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The atomic number of an element having the valence shell electronic configuration $4 s^{2} 4 p^{6}$ is

A. 35

B. 26

C. 23

D. 34

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Davisson and Germer gave an experimental evidence for

A. wave nature of electron

B. particle nature of electron

C. particle nature of light

D. wave nature of light

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Accepted Answer

D. Einstein

The interrelationship between matter and energy was given by

Correct Answer :

Show all Atomic Structure MCQ

Related Questions

The orbitals with maximum number of possible orientation is:

The interrelationship between matter and energy was given by

The fundamental particle that has least mass is

Charge on an electron was shown by

The number of unpaired electrons in a chromic ion $C r^{+ 3}$ (atomic number 24) is

The wavelength of an electron

The charge on an atom of ${}_{13}^{27}A l$ is

Frequency of the wave having wave number $20000 c m^{- 1}$ is

The number of unpaired electrons in fluorine atoms is/are

Electronic configuration of $C u^{+}$ is

The angular momentum of the moving electron is equal to

The wavelength of an electron moving with a velocity $5 \times 10^{5} m s e c^{- 1} i s (h = 6.63 \times 10^{- 34} k g m^{2} s e c^{- 1})$

In an atom of hydrogen, which of the following orbitais has the lowest energy for an electron present in it?

No two electrons in an atom can have the same values of all four quantum numbers according to

A dipositive ion $Z^{+ +}$ has $2 e^{-}$ in the K shell, 8 e~ s in the L shell and $8 e^{-}$ in the M shell. Atomic number of Z is

The number of unpaired electrons in the ground state of chromium is

The number of neutrons in the deuterium atom is

Which elements is represented by the following electronic configuration?

Which of the following has the highest mass?

For a given energy level the number of orbitals is equal to

The relationship between energy of a radiation and its frequency was given by

The maximum number of electrons in a sub-energy level is equal to

$β$ rays are a stream of

If value of h is taken as $10^{- 34} k g m^{2} s e c^{- 1}$ , the de-Broglie wavelength of a particle of mass $10^{- 31}$ having velocity $10^{9} c m s e c^{- 1}$ is

When the electron is excited from K level to M level we get

Which of the following weighs the least?

The ion that is isoelectronic with CO is

The possible values of l for an s orbital are

The atomic number of an element having the valence shell electronic configuration $4 s^{2} 4 p^{6}$ is

Davisson and Germer gave an experimental evidence for

Also checkout

The interrelationship between matter and energy was given by

Correct Answer :

Show all Atomic Structure MCQ

Related Questions

The orbitals with maximum number of possible orientation is:

The interrelationship between matter and energy was given by

The fundamental particle that has least mass is

Charge on an electron was shown by

The number of unpaired electrons in a chromic ion Cr+3 (atomic number 24) is

The wavelength of an electron

The charge on an atom of A1327l is

Frequency of the wave having wave number 20000 cm-1 is

The number of unpaired electrons in fluorine atoms is/are

Electronic configuration of Cu+ is

The angular momentum of the moving electron is equal to

The wavelength of an electron moving with a velocity 5×105m sec-1 is (h=6.63 ×10-34 kg m2 sec-1)

In an atom of hydrogen, which of the following orbitais has the lowest energy for an electron present in it?

No two electrons in an atom can have the same values of all four quantum numbers according to

A dipositive ion Z++ has 2e- in the K shell, 8 e~ s in the L shell and 8e- in the M shell. Atomic number of Z is

The number of unpaired electrons in the ground state of chromium is

The number of neutrons in the deuterium atom is

Which elements is represented by the following electronic configuration?

Which of the following has the highest mass?

For a given energy level the number of orbitals is equal to

The relationship between energy of a radiation and its frequency was given by

The maximum number of electrons in a sub-energy level is equal to

β rays are a stream of

If value of h is taken as 10-34 kg m2 sec-1, the de-Broglie wavelength of a particle of mass 10-31 having velocity 109cm sec-1 is

When the electron is excited from K level to M level we get

Which of the following weighs the least?

The ion that is isoelectronic with CO is

The possible values of l for an s orbital are

The atomic number of an element having the valence shell electronic configuration 4s24p6 is

Davisson and Germer gave an experimental evidence for

Also checkout

The number of unpaired electrons in a chromic ion $C r^{+ 3}$ (atomic number 24) is

The charge on an atom of ${}_{13}^{27}A l$ is

Frequency of the wave having wave number $20000 c m^{- 1}$ is

Electronic configuration of $C u^{+}$ is

The wavelength of an electron moving with a velocity $5 \times 10^{5} m s e c^{- 1} i s (h = 6.63 \times 10^{- 34} k g m^{2} s e c^{- 1})$

A dipositive ion $Z^{+ +}$ has $2 e^{-}$ in the K shell, 8 e~ s in the L shell and $8 e^{-}$ in the M shell. Atomic number of Z is

$β$ rays are a stream of

If value of h is taken as $10^{- 34} k g m^{2} s e c^{- 1}$ , the de-Broglie wavelength of a particle of mass $10^{- 31}$ having velocity $10^{9} c m s e c^{- 1}$ is

The atomic number of an element having the valence shell electronic configuration $4 s^{2} 4 p^{6}$ is