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

Question

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

Correct Answer :

B.

n	l	m
2	1	1

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Charge on fundamental particle neutrino is

A. 0

B. +1

C. -1

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

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Which elements is represented by the following electronic configuration?

B. Oxygen

D. Neon

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The size of nucleus is

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

C. $2 n^{2}$

D. $n^{3}$

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In Lyman series an electron jumps from higher energy level to

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

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

A. meson

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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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Isotones have same

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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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The number of neutrons in the deuterium atom is

A. 16

B. 3

C. 1

D. 0

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The wavelength of an electron

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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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The interrelationship between matter and energy was given by

B. Joule

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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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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 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

Discuss this answer

The angular momentum of the moving electron is equal to

Discuss this answer

Which of the following has the highest mass?

Discuss this answer

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

Discuss this answer

The orbitals with maximum number of possible orientation is:

A. s

B. d

C. f

D. p

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Charge on an electron was shown by

C. Ohm

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Argon is isoelectronic with

B. $C l^{-}$

C. $B r^{-}$

D. $H^{+}$

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

Discuss this answer

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

Discuss this answer

$β$ rays are a stream of

A. He

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

A. Planck

D. Joule

Discuss this answer

Answer 1

D. None of these

Answer 2

A. 40 protons and 20 electrons

Answer 3

B. 20 protons and 40 electrons

Answer 4

C. 20 protons and 40 neutrons

Answer 5

D. 20 protons and 20 neutrons

Answer 6

A. Nitrogen

Answer 7

C. Fluorine

Answer 8

A.

10^{- 12} m

Answer 9

B.

10^{- 8} m

Answer 10

C.

10^{- 15} m

Answer 11

D.

10^{- 10} m

Answer 12

A.

4 (2 l + 1)

Answer 13

B.

2 (2 l + 1)

Answer 14

A. K energy level

Answer 15

B. M energy level

Answer 16

C. N energy level

Answer 17

D. L energy level

Answer 18

A.

γ

- rays

Answer 19

B. cathode rays

Answer 20

C. continuous spectra

Answer 21

D. absorption spectra

Answer 22

B. electron

Answer 23

C. positron

Answer 24

D. neutron

Answer 25

A. mass number

Answer 26

B. nuclear mass

Answer 27

C. no. of neutrons

Answer 28

D. no. of electrons

Answer 29

A. is equal to that of light

Answer 30

B. remains constant with velocity

Answer 31

C. decreases with an increasing velocity

Answer 32

D. increases with an decreasing velocity

Answer 33

A. Rutherford

Answer 34

C. de Broglie

Answer 35

D. Einstein

Answer 36

A.

\sqrt{n h}

Answer 37

B.

\frac{h^{2}}{2 π}

Answer 38

C.

\frac{n h}{π}

Answer 39

D.

\frac{n h}{2 π}

Answer 40

A. Neutron

Answer 41

B. Alpha particle

Answer 42

C. Electron

Answer 43

D. Deuterium

Answer 44

A.

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

Answer 45

B.

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

Answer 46

C.

3 \times 10^{14} M H z

Answer 47

D.

4 \times 10^{6} H z

Answer 48

A. J. J. Thomson

Answer 49

B. Kirchoff

Answer 50

D. M.Planck

Answer 51

A.

M g^{+ +}

Answer 52

A.

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

Answer 53

B.

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

Answer 54

C.

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

Answer 55

D.

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

Answer 56

B. electrons

Answer 57

C. positron

Answer 58

D. neutrons

Answer 59

B. Rutherford

Answer 60

C. Einstein

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

Correct Answer :

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

Correct Answer :

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Isotones have same

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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

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