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The 2px and 2py, 2pz, orbitals of an ato...

The `2p_x and 2p_y, 2p_z,` orbitals of an atom have identical shapes but differ in their............

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Fill in the Blanks (i) The outermost electronic configuration of Cr is ……………. (ii) The 2p_(x),2p_(y), and 2p_(z) orbitals of atom have identical shapes but differ in their ………………….. (iii) Wave functions of electrons in atoms and molecules are called..................... (iv) The light radiations with discrete quantities of energy are called........................ (v) The uncertainty principle and the concept of wave nature of matter were prposed by........................ and ............................ respectively. (Heisenberg, Schrodinger, Maxwel, de Broglie) (vi) The wave number of the shortest wavelength transition in the Balmer series of atomic hydrogen is................ (vii) The modern atomic mass unit is based on the mass of ................... (viii) The orbitals possessing same energy are known as................................ (ix) Wave functions of electrons in atom and molecules are called............................ (x) The type of magnetism exhitited by [Mn(H_(2)O)_(6)]^(2+) ion is ........................... (xi) The p-orbitals are directed towards................ coordinate and are at ................... angles to one another. (xii) The energy change in an electron jump is given by....................

The shape of p orbital is

The shape of s-orbital is ………while the shape of p-orbital is...........

n, l and m values of the 2p_(z) orbital are

When 2s orbital overlaps with 2p_(x) or 2p_(y) orbital (assuming Z -axis as the internuclear axis) threr is a partical overlap and they do not form any MO Explain why ? .

The p-orbital is in the shape of a _____________

How do p_(x),p_(y) and p_(z) atomic orbitals differ ?

Electrons are revolving around the nucleus in n_(1^(th)) orbit of an atom, have atomic number Z_1 , and in the n_2 orbit of other atom, have atomic number Z_2 , then [Where P= Linear momentum, L=Angular momentum, f=frequency of revolution and K.E. =kinetic energy]

The energy of an electron of 2p_(x) orbital is :

Comprehension given below is followed by some multiple choice question, Each question has one correct options. Choose the correct option. Molecular orbitals are formed by the overlap of atomic orbitals. Two atomic orbitals combine to form two molecular orbitals called bonding molecular orbital (BMO) and anti-bonding molecular orbital (ABMO). Energy of anti-bonding orbital is raised above the parent atomic orbitals that have combined and hte energy of the bonding orbital is lowered than the parent atomic orbitals. energies of various molecular orbitals for elements hydrogen to nitrogen increase in the order sigma1s lt sigma^(star)1sltsigma^(star)2slt((pi2p_(x))=(pi2p_(y)))ltsigma2p_(z)lt(pi^(star)2p_(x) = pi^(star)2p_(y))ltsigma^(star)2p_(z) and For oxygen and fluorine order of enregy of molecules orbitals is given below. sigma1s lt sigma^(star)1s lt sigma2s lt sigma^(star)2s lt sigmap_(z) lt (pi2p_(x) ~~ pi2p_(y)) lt (pi^(star)2p_(x)~~ pi^(star)2py) lt sigma^(star)2p_(z) Different atomic orbitalsof one atom combine with those atoms orbitals of the second atom which have comparable energies and proper orientation. Further, if the overlapping is head on, the molecular orbital is called sigma, sigma andif the overlap is lateral, the molecular orbital is called pi, pi . The molecular orbitals are filled with electrons according to the same rules as followed for filling of atomic orbitals. However, the order for filling is not the same for all molecules or their ions. Bond order is one of the most important parameters to compare the strength of bonds. In which of the following molecules, sigma2p_(z) molecular orbital is filled after pi2p_(x) and pi2p_(y) molecular orbitals?

ICSE-STRUCTURE OF ATOM-Fill in the Blanks Type Questions
  1. Calculate the wavelength associated with an electron moving with a vel...

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  2. Cathode rays produce ............when they strike metals.

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  3. The charge on an electron was first determined by ............in by hi...

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  4. The actual mass of a proton is ............g.

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  5. The entire mass and positive charge of an atom is concentrated into it...

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  6. The light radiations with discrete quantities of energies are called.....

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  7. How many moles of photon would contain sufficient energy to raise the ...

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  8. The 2px and 2py, 2pz, orbitals of an atom have identical shapes but di...

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  9. An orbital consists a maximum of ............electrons.

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  10. In Bohr's model, an electron should follow a ............path due to l...

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  11. The uncertainty principle and the concept of wave nature of matter wer...

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  12. Which has a higher energy, a photon of violet light with wavelength 40...

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  13. The splitting of spectral lines under the influence of magnetic field ...

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  14. Wave functions of electrons in atoms and molecules are called............

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  15. An acceptable value of wave function should be ...............,..........

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  16. The principal quantum number tells the .............to which electron ...

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  17. The values of l are governed by the value of.............

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  18. An electron has principal quantum number 3. The number of its (i) sub-...

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  19. An f subshell contains ..............orbitals.

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  20. The energy of 6s subshell is ............than that of 4f subshell.

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