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The charge on the atom containing 17 protons, 18 neutrons and 18 electrons is:
(1) +1
(2) -2
(3) -1
(4)Zero
Ans: -1
the increasing order(lower first) for the values of e/m (charge/mass) for e,p,n,a?
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The de-Broglie wavelength associated with a particle of mass 10 -6 kg moving with a velocity of 10 ms -1 , is: (1) 6.63 x 10 -22 m (2) 6.63 x 10 -29 m
Q. Example to show scientific notation? Solve the following problem. 2.45 *10 14 kg + 4.00 * 10 12 kg First articulate both quantities to the same power of ten. Either
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Indigo test
A polymer instance has chain of different type of lengths and hence its molecular mass is all the time expressed as an average on the other hand natural polymer like proteins consi
Rutherford's scattering experiment is related to the size of the: (1) Nucleus (2) Atom (3) Electron (4) Neutron Ans: Nucleus
# what are supersaturated vapours
What is the nature of urea? Is it acidic basic or neautral how can wr verify it?
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