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An element has the electronic configuration 1s2, 2s2, 2p6, 3s2, 3p2. Its valency electrons are:
(1) 6
(2) 2
(3) 3
(4)4
Ans: 4
Q. Show the Effect of concentration on Chemical Equilibrium? Ans. When more of one of the chemicals is added to the reaction, more collisions take place moving the reactio
ORIGIN AND ABUNDANCE OF THE ELEMENTS The synthesis of elements needs nuclear reactions, of which the most important type is the fusion of two light nuclei to prepare one of
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Nuclei tend to have more neutrons than protons at high mass numbers because: (1) Neutrons are neutral particles (2) Neutrons have more mass than protons (3) More neut
Draw C5H10O2 that has the following 1H NMR spectrum: 1.15 (t, 3 H), 1.25 (t, 3 H), 2.33 (q, 2 H), 4.13 (q, 2 H).
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The shape of an orbital is given by the quantum number : (1) n (2) l (3) m (4) s Ans: l
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