questions which can be made from the chapter atomic structure
Answers
rrange s, p and d sub-shells of a shell in the increasing order of effective nuclear charge (Zeff) experienced by the electron present in them.
Show the distribution of electrons in oxygen atom (atomic number 8) using orbital diagram.
Nickel atom can lose two electrons to form Ni2+ ion. The atomic number of nickel is 28. From which orbital will nickel lose two electrons.
Which of the following orbitals are degenerate?
3dxy, 4dxy, 3dz2, 3dyz, 4dyz, 4dz2
Calculate the total number of angular nodes and radial nodes present in 3p orbital.
The arrangement of orbitals on the basis of energy is based upon their (n+l ) value. Lower the value of (n+l ), lower is the energy. For orbitals having same values of (n+l), the orbital with lower value of n will have lower energy.
I. Based upon the above information, arrange the following orbitals in the increasing order of energy.
(a) 1s, 2s, 3s, 2p
(b) 4s, 3s, 3p, 4d
(c) 5p, 4d, 5d, 4f, 6s
(d) 5f, 6d, 7s, 7p
II. Based upon the above information, solve the questions given below :
(a) Which of the following orbitals has the lowest energy?
4d, 4f, 5s, 5p
(b) Which of the following orbitals has the highest energy?
5p, 5d, 5f, 6s, 6p
Which of the following will not show deflection from the path on passing through an electric field?
Proton, cathode rays, electron, neutron.
An atom having atomic mass number 13 has 7 neutrons. What is the atomic number of the atom?
Wavelengths of different radiations are given below :
λ(A) = 300 nm λ(B) = 300 μm λ (C) = 3 nm λ = 0 (D) 30 A°
Arrange these radiations in the increasing order of their energies.
The electronic configuration of valence shell of Cu is 3d104s1 and not 3d94s2. How is this configuration explained?
The Balmer series in the hydrogen spectrum corresponds to the transition from n1 = 2 to n2 = 3,4,………. This series lies in the visible region. Calculate the wave number of line associated with the transition in Balmer series when the electron moves to n = 4 orbit.
(RH = 109677 cm–1)
According to de Broglie, matter should exhibit dual behaviour, that is both particle and wave like properties. However, a cricket ball of mass 100 g does not move like a wave when it is thrown by a bowler at a speed of 100 km/h. Calculate the wavelength of the ball and explain why it does not show wave nature.
What is the experimental evidence in support of the idea that electronic energies in an atom are quantized?
Out of electron and proton which one will have, a higher velocity to produce matter waves of the same wavelength? Explain it.
A hypothetical electromagnetic wave is shown in Fig. 2.2. Find out the wavelength of the radiation.

Chlorophyll present in green leaves of plants absorbs light at 4.620 × 1014 Hz. Calculate the wavelength of radiation in nanometer. Which part of the electromagnetic spectrum does it belong to?
What is the difference between the terms orbit and orbital?
Table-tennis ball has a mass 10 g and a speed of 90 m/s. If speed can be measured within an accuracy of 4% what will be the uncertainty in speed and position?
The effect of uncertainty principle is significant only for motion of microscopic particles and is negligible for the macroscopic particles. Justify the statement with the help of a suitable example.
Hydrogen atom has only one electron, so mutual repulsion between electrons is absent. However, in multielectron atoms mutual repulsion between the electrons is significant. How does this affect the energy of an electron in the orbitals of the same principal quantum number in multielectron atoms?
Answer:
1.what is atomic structure
2.draw a diagram of structure of an atom
3.what is nucleus
Explanation:
1.atomic structure is the positively charged nucleus and the negatively charged electrons circling around it, within an atom.
2 given above
3.Atom is the smallest particle of matter. ... Center of the atom, including protons and neutrons, is called also nucleus
