According to Pauli’s exclusion principle the maximum number of electrons filled in an orbital is ………………
A) 1
B) 2
C) 3
D) 4
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A gas is filled in a vessel at a certain temperature and at a pressure of `80 cm` of Hg. At the same temperature, more gas is filled in the vessel so
Correct Answer - `128 cm` of Hg
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What are the valence electrons? For s-block and p-block elements show that number of valence electrons is equal to its group number.
Electrons present in the outermost shell of the atom of an element are called valence electrons. 3Li is an s-block element and its electronic configuration is 1s22s1. Since it has one...
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The delocaalization of electrons due to overlap between p-orbital and sigma bond is called …………….
Option : c. Hyperconjugation
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s – orbital — i) dumbell , p – orbital — ii) spherical
C) a→ii, b→i, c→iii
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a) s – sub shell i) Maximum number of electrons is 6, b) p – sub shell ii) Maximum number of electrons is 14
C) a→iii, b→i, c→iv, d→ii
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Orbitals are filled with electrons in the order of increasing energy is given by ………….. principle.
Correct option is B) Aufbau
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The maximum number of electrons accommodated in a sub shell with Azimuthal quantum number (angular momentum quantum number) l is ………………….
Correct option is B) 4l + 2
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An atom has two electrons in its 4s orbital. Write the values of the four quantum numbers for each of them.
For the 4s orbital, 4 stands for the principal quantum number n; s stands for the subshell s having the value of azimuthal quantum number, l = 0. In the ‘s’ subshell,...
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The last electron enters a (n-1)d orbital only after the ns subshell is completely filled. Explain.
A d subshell is present in the shells with n ≥ 3 and according to the (n+1) rule, the energy of ns orbital is less than that of the (n-1)d...
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i. Position of the elements in the modern periodic table is related to the quantum number of their last filled orbital.
i. True ii. False Period number is same as the principal quantum number ‘n’ of the valence shell of the elements.
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