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

Question

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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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 has the highest mass?

A. Neutron

B. Alpha particle

C. Electron

D. Deuterium

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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 number of neutrons in the deuterium atom is

A. 16

B. 3

C. 1

D. 0

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Wave number is defined as

A. $\frac{3}{λ}$

B. $\frac{λ^{2}}{n π}$

C. $\frac{h}{2 π}$

D. $\frac{1}{λ}$

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Cathode rays contain a stream of

A. $n$

B. $r$

C. ${}_{+ 1}e^{0}$

D. ${}_{- 1}e^{0}$

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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 velocity of a photon is

A. dependent on its wavelength

B. dependent on its source

C. equal to cube of its amplitude

D. independent of its wavelength

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Charge on fundamental particle neutrino is

A. 0

B. +1

C. -1

D. None of these

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Among the following ions, which are has the highest paramagnetism?

A. $[C r (H_{2} O)_{6}]^{+ 3}$

B. $[F e (H_{2} O)_{6}]^{+ 2}$

C. $[C u (H_{2} O)_{6}]^{+ 2}$

D. $[Z n (H_{2} O)_{6}]^{+ 2}$

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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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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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The number of neutrons present in ${}_{19}^{39}K$ are

A. 28

B. 39

C. 20

D. 19

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In Lyman series an electron jumps from higher energy level to

A. K energy level

B. M energy level

C. N energy level

D. L energy level

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Isotopes have different

A. arrangement of electrons

B. no. of P and e'

C. no. of neutrons

D. no. of electrons

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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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The number of unpaired electrons in fluorine atoms is/are

A. 4

B. 2

C. 1

D. 0

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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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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 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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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 orbitals with maximum number of possible orientation is:

A. s

B. d

C. f

D. p

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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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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 that can be accommodated by an atom in g-sub-energy level are

A. 20

B. 25

C. 18

D. 12

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Bohr's concept of the orbit in an atom was contradicted by

A. de Broglie relationship

B. Uncertainty principle

C. Planck's hypothesis

D. Hund's rule

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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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Argon is isoelectronic with

A. $M g^{+ +}$

B. $C l^{-}$

C. $B r^{-}$

D. $H^{+}$

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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

B.

2 (2 l + 1)

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

Correct Answer :

Show all Atomic Structure MCQ

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Wave number is defined as

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

Correct Answer :

Show all Atomic Structure MCQ

Related Questions

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

Which of the following has the highest mass?

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

The number of neutrons in the deuterium atom is

Wave number is defined as

Cathode rays contain a stream of

The possible values of l for an s orbital are

The velocity of a photon is

Charge on fundamental particle neutrino is

Among the following ions, which are has the highest paramagnetism?

Which elements is represented by the following electronic configuration?

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

The number of neutrons present in K1939 are

In Lyman series an electron jumps from higher energy level to

Isotopes have different

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

The number of unpaired electrons in fluorine atoms is/are

For a given energy level the number of orbitals is equal 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

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The ion that is isoelectronic with CO is

The orbitals with maximum number of possible orientation is:

The charge on an atom of A1327l is

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

The maximum number of electrons that can be accommodated by an atom in g-sub-energy level are

Bohr's concept of the orbit in an atom was contradicted by

The interrelationship between matter and energy was given by

Argon is isoelectronic with

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 number of neutrons present in ${}_{19}^{39}K$ are

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

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