Write the general outer electronic configuration of s-, p-, d- and f- block elements.
|
Element |
General outer electronic configuration |
|
s–block(alkali metals) |
ns1–2, where n = 2 – 7 |
|
p–block(metals & non metals) |
ns2np1–6, where n = 2 – 6 |
|
d–block(transition elements) |
(n–1) d1–10 ns0–2, where n = 4 – 7 |
|
f–block(inner transition elements) |
(n–2)f1–14(n–1)d0–10ns2, where n = 6 – 7 |
Popular Questions of Class 11th chemistry
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A sample of drinking water was found to be severely contaminated with chloroform, CHCl3, supposed to be carcinogenic in nature. The level of contamination was 15 ppm (by mass).
(i) Express this in percent by mass.
(ii) Determine the molality of chloroform in the water sample.
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Calculate the amount of carbon dioxide that could be produced when
(i) 1 mole of carbon is burnt in air.
(ii) 1 mole of carbon is burnt in 16 g of dioxygen.
(iii) 2 moles of carbon are burnt in 16 g of dioxygen.
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Determine the empirical formula of an oxide of iron which has 69.9% iron and 30.1% dioxygen by mass.
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(i) 300 atoms of A + 200 molecules of B
(ii) 2 mol A + 3 mol B
(iii) 100 atoms of A + 100 molecules of B
(iv) 5 mol A + 2.5 mol B
(v) 2.5 mol A + 5 mol B
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The equilibrium constant for a reaction is 10. What will be the value of ΔG0 ? R = 8.314 JK–1 mol–1, T = 300 K.
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Calcium carbonate reacts with aqueous HCl to give CaCl2 and CO2 according to the reaction,
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A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide, 0.690 g of water and no other products. A volume of 10.0 L (measured at STP) of this welding gas is found to weigh 11.6 g. Calculate
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(ii) molar mass of the gas, and
(iii) molecular formula.
Recently Viewed Questions of Class 11th chemistry
- Q:-
Calculate the amount of carbon dioxide that could be produced when
(i) 1 mole of carbon is burnt in air.
(ii) 1 mole of carbon is burnt in 16 g of dioxygen.
(iii) 2 moles of carbon are burnt in 16 g of dioxygen.
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What is the energy in joules, required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state? The ground state electron energy is –2.18 × 10–11 ergs.
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b n = 1 l = 0 ml = 0
c n = 1 l = 1 ml = 0
d n = 2 l = 1 ml = 0
e n = 3 l = 3 ml = – 3
f n = 3 l = 1 ml = 0
">Explain, giving reasons, which of the following sets of quantum numbers are not possible.
a n = 0 l = 0 ml = 0
b n = 1 l = 0 ml = 0
c n = 1 l = 1 ml = 0
d n = 2 l = 1 ml = 0
e n = 3 l = 3 ml = – 3
f n = 3 l = 1 ml = 0
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Dinitrogen and dihydrogen react with each other to produce ammonia according to the following chemical equation:
N2(g) + H2(g) → 2NH3(g)
(i) Calculate the mass of ammonia produced if 2.00 × 103 g dinitrogen reacts with 1.00 × 103 g of dihydrogen.
(ii) Will any of the two reactants remain unreacted?
(iii) If yes, which one and what would be its mass?
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Energy of an electron in the ground state of the hydrogen atom is –2.18 × 10–18 J. Calculate the ionization enthalpy of atomic hydrogen in terms of J mol–1.
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Which of the following are isoelectronic species i.e., those having the same number of electrons?
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Determine the empirical formula of an oxide of iron which has 69.9% iron and 30.1% dioxygen by mass.
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Using s, p, d notations, describe the orbital with the following quantum numbers.
(a) n = 1, l = 0;
(b) n = 3; l =1
(c) n = 4; l = 2;
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Comment on the thermodynamic stability of NO(g), given
1/2 N2(g) + 1/2 O2(g) → NO(g) ; ΔrH0 = 90 kJ mol–1
NO(g) + 1/2 O2(g) → NO2(g) : ΔrH0= –74 kJ mol–1
10 Comment(s) on this Question
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Thanks a lot ....ðð
Configuration of d-block is correctly given according to NCERT Book. Pd has the configuration of [Kr]5s^(0) 4d^(10), which justifies the given configuration.
General electronic configuration for d block is WRONG. It should be (n-1)d(1-10)ns(1-2)
General configuration of D block element is wrong. It is (n -1)d^1-10ns^1-2. This right general configuration of D block element
Well nice But I have more interest in biology only(botany,zoology).But This answer is useful to me
Amazing!!!!
This is very useful to us...... Keep up this great workððð
Thnks for ur Help!
Thanks so much for this
- NCERT Chapter