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Recent questions tagged structure-of-atom

Which out of $Cu^{2+},Fe^{2+}$ and $Cr^{3+}$ has highest paramagnetism and why

asked Jul 9, 2019 by meena.clay6

1 answer

How many radial/spherical nodes will be present in the 5f orbitals?

asked Jul 9, 2019 by meena.clay6

1 answer

What will be the maximum number of electrons having the same spin in an atom with n+l=4 ?

asked Jul 9, 2019 by meena.clay6

1 answer

When is the energy of electron regarded as zero.

asked Jul 9, 2019 by meena.clay6

1 answer

How many unpaired electrons are present in $Pd (Z = 46)$?

asked Jul 8, 2019 by meena.clay6

1 answer

Which element does not have any neutron?

asked Jul 8, 2019 by meena.clay6

1 answer

The increasing order (lowest first) for the values of e/m (charge/mass) for

asked Jul 5, 2019 by meena.clay6

1 answer

Atomic number of an element is equal to the number of

asked Jul 3, 2019 by meena.clay6

1 answer

Which out of $Cu^{2+},Fe^{2+}$ and $Cr^{3+}$ has highest paramagnetism and why

asked Jul 3, 2019 by meena.clay6

1 answer

How many radial/spherical nodes will be present in the 5f orbitals?

asked Jul 3, 2019 by meena.clay6

1 answer

What will be the maximum number of electrons having the same spin in an atom with n+l=4 ?

asked Jul 3, 2019 by meena.clay6

1 answer

When is the energy of electron regarded as zero.

asked Jul 3, 2019 by meena.clay6

1 answer

How many unpaired electrons are present in Pd (Z = 46) ?

asked Jul 3, 2019 by meena.clay6

1 answer

Which element does not have any neutron?

asked Jul 3, 2019 by meena.clay6

1 answer

Yellow light emitted from a sodium lamp has a wavelength $(\lambda)$ of 580 nm. Calculate thefrequency $(ν)$ and wave number of the yellow light.

asked Jul 3, 2019 by meena.clay6

0 answers

Compare the wavelengths for the first three lines in the Balmer series with those which arise from similar

asked Jun 28, 2019 by meena.clay6

1 answer

A 1 MeV proton is sent against a gold leaf (Z = 79). Calculate the distance of closest approach for head on collision.

asked Jun 28, 2019 by meena.clay6

1 answer

Atomic number of an element is equal to the number of

asked Jun 27, 2019 by meena.clay6

1 answer

The angular momentum of electrons in d orbital is equal to

asked Jun 27, 2019 by meena.clay6

1 answer

Write 3 points of difference between electromagnetic waves and matter waves

asked Jun 27, 2019 by meena.clay6

1 answer

Calculate the total number of angular nodes and radial nodes present in 30 orbitals

asked Jun 27, 2019 by meena.clay6

1 answer

An element with mass number 81 contains $31.7 \%$ more neutrons as compared to protons. Assign the atomic symbol.

asked Jun 26, 2019 by meena.clay6

1 answer

What is the relationship between frequency and wavelength of light?

asked May 20, 2019 by meena.clay6

1 answer

Neutrons can be found in all atomic nuclei except in one case. Which is this atomic nucleus and what does it consists of?

asked May 20, 2019 by meena.clay6

1 answer

Which are isosters ?

asked May 16, 2019 by meena.clay6

1 answer

Calculate the wave number of lines having the frequency of $5 \times 10^{16}$ cycles per sec

asked May 16, 2019 by meena.clay6

1 answer

Calculate the ratio of K.E and P.E of an electron in an orbit?

asked May 16, 2019 by meena.clay6

1 answer

Calculate the accelerating potential that must be applied to a proton beam to give it an effective wavelength of 0.005 nm.

asked May 16, 2019 by meena.clay6

1 answer

calculate the Broglie wavelength of an electron moving with 1% of the speed of light ?

asked May 16, 2019 by meena.clay6

1 answer

What is common between $d_{xy}$ and $d_{x2-y2}$ orbitals ?

asked May 16, 2019 by meena.clay6

1 answer

Calculate energy of 2 moles of photons of radiation whose frequency is $5 \times 10^{34}\;Hz$

asked May 16, 2019 by meena.clay6

1 answer

What is relative mass and charge of an electron?

asked May 15, 2019 by meena.clay6

1 answer

Define the term scintillations?

asked May 15, 2019 by meena.clay6

1 answer

Why some atoms shows radioactivity?

asked May 15, 2019 by meena.clay6

1 answer

The value of Planck's constant is $6.63 \times 10^{-34} Js$. The speed of light is $3 \times 10^{17} nms^{-1}$. Which value is closest to the wavelength in nanometer of a quantum of light with frequency of $6 \times 10^{15} s^{-1}$ ?

asked Aug 20, 2018 by pady_1

1 answer

Find energy of each of the photons which correspond to light of frequency $3\times 10^{15}Hz$.

asked Jul 19, 2018 by swapnarajan1982

1 answer

Atoms consists of protons, neutrons and electrons. If the mass of neutrons and electrons were made half and two times respectively to their actual masses, then the atomic mass of ${_6}C^{12}$

asked Jul 17, 2018 by swapnarajan1982

1 answer

With what velocity must an electron travel so that its momentum is equal to that of a photon of wavelength $\lambda=5200A^{\large\circ}$?

asked Jan 16, 2014 by sreemathi.v

1 answer

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