The fundamental particle that has least mass is

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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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Which of the following has the highest mass?

A. Neutron

B. Alpha particle

C. Electron

D. Deuterium

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The size of nucleus is

A. $10^{- 12} m$

B. $10^{- 8} m$

C. $10^{- 15} m$

D. $10^{- 10} m$

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In the nucleus of ${}_{20}C a^{40}$ there are

A. 40 protons and 20 electrons

B. 20 protons and 40 electrons

C. 20 protons and 40 neutrons

D. 20 protons and 20 neutrons

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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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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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$β$ rays are a stream of

A. He

B. electrons

C. positron

D. neutrons

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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 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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The fundamental particle that has least mass is

A. meson

B. alpha-particle

C. electron

D. neutron

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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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The atomic structure of an atom of an element is Is $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{6}$ . The element is

A. Cl-35

B. S-32

C. N-18

D. O-16

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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 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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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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Isotones have same

A. mass number

B. nuclear mass

C. no. of neutrons

D. no. of electrons

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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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Mass of positron is the same to that of

A. proton

B. meson

C. electron

D. neutron

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The exchange of particles considered responsible for keeping the nucleons together are

A. meson

B. electron

C. positron

D. neutron

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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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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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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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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 orbitals with maximum number of possible orientation is:

A. s

B. d

C. f

D. p

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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 interrelationship between matter and energy was given by

A. Rutherford

B. Joule

C. de Broglie

D. Einstein

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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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The correct set of quantum numbers for the impaired electron of fluorine atom is

A.

n	l	m
2	1	0

B.

n	l	m
2	1	1

C.

n	l	m
3	1	1

D.

n	l	m
3	0	0

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The corect set of quantum numbers for the impaired electron of fluorine atom is

A.

n	l	m
2	1	0

B.

n	l	m
2	1	1

C.

n	l	m
3	1	1

D.

n	l	m
3	0	0

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Accepted Answer

D. neutron

The fundamental particle that has least mass is

Correct Answer :

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Related Questions

Which of the following has the highest mass?

The size of nucleus is

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In Lyman series an electron jumps from higher energy level to

$β$ rays are a stream of

Isotopes have different

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The atomic structure of an atom of an element is Is $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{6}$ . The element is

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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

Isotones have same

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Mass of positron is the same to that of

The exchange of particles considered responsible for keeping the nucleons together are

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

The velocity of a photon is

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

Wave number is defined as

Cathode rays contain a stream of

The orbitals with maximum number of possible orientation is:

The ion that is isoelectronic with CO is

The interrelationship between matter and energy was given by

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

The correct set of quantum numbers for the impaired electron of fluorine atom is

The corect set of quantum numbers for the impaired electron of fluorine atom is

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The fundamental particle that has least mass is

Correct Answer :

Show all Atomic Structure MCQ

Related Questions

Which of the following has the highest mass?

The size of nucleus is

In the nucleus of C20a40 there are

The charge on an atom of A1327l is

In Lyman series an electron jumps from higher energy level to

β rays are a stream of

Isotopes have different

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)

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Which elements is represented by the following electronic configuration?

The atomic structure of an atom of an element is Is 1s2, 2s22p6, 3s23p6. The element is

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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

Isotones have same

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

Mass of positron is the same to that of

The exchange of particles considered responsible for keeping the nucleons together are

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

The velocity of a photon is

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

Wave number is defined as

Cathode rays contain a stream of

The orbitals with maximum number of possible orientation is:

The ion that is isoelectronic with CO is

The interrelationship between matter and energy was given by

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

The correct set of quantum numbers for the impaired electron of fluorine atom is

The corect set of quantum numbers for the impaired electron of fluorine atom is

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In the nucleus of ${}_{20}C a^{40}$ there are

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

$β$ rays are a stream of

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

The atomic structure of an atom of an element is Is $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{6}$ . The element is

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

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