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Q. What is alpha radiation?
Types of radiation there are three principal types of radiation are given off during radioactive decay. One kind is alpha radiation (α-radiation) which consists of alpha particles ejected from the nucleus. An alpha particle is equal to a helium-4 nucleus that is a nucleus with two protons and two neutrons. Alpha particles have a 2+ charge.
what are the acid refractory and its application and examples?
The number of electrons and neutrons of an element is 18 and 20 respectively. Its mass number is: (1) 17 (2) 37 (3)2 (4)38 Ans: 17
Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction? Ans) The Standard free energy of formation of Cu2S is greater than
The maximum number of electrons present in an orbit l= 3 , is: (1) 6 (2) 8 (3) 10 (4) 14 Ans: 14
Nylone–66 is formed by
Physical charterstics of monocarboxylic acids Physical state: The first or initial three members (upto 3 carbon atoms) are colourless, pungent smelling liquids.
A 64-g sample of germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0 g remain. What is the half-life of this material? 4. With a half-life of 28.8
Fe3+ + e ------> Fe2+
mechanism of make of hexane-1,6-dioic acid by Nitric acid
what color about s-block oxide
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