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When α -particles are sent through a thin metal foil, most of them go straight through the foil because (one or more are correct):
(1) Alpha particles are much heavier than electrons
(2) Alpha particles are positively charged
(3) Most part of the atom is empty space
(4)Alpha particles move with high velocity
Ans: Most part of the atom is empty space
The quantum number 'm' of a free gaseous atom is associated with : (1) The effective volume of the orbital (2) The shape of the orbital (3) The spatial orientation of the
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Equivalent weight of Ca in Ca3(PO4)2 is
uses
Benzaldehyde - Aldehydes and Ketones Benzaldehyde is simple aromatic aldehyde. It occurs in bitter almonds in the type of its glucoside, amygdalin (C 20 H 27 O 11 N). While amy
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