The location and energy of an electron in an atom can be
1 Atomic mass
2 Atomic number
3 Quantum numbers
4 None of these
Answer / guest
(3) Quantum numbers
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In a fast breeder reactor, U-238 gets converted to 1 U-235 2 U-237 3 Co-60 4 Plutonium-239
What is the wavelength of visible spectrum? 1 1300A-3000A 2 3900A-7600A 3 7800A-8000A 4 8500A-9800A
Which are the important pulsating nebulae?
What is the Physiology ?
Which of the following metals is a better conductor of electricity? A. Silver B. Copper
What are vitamins ? describe different kinds of vitamins
What would happen had there been no chlorophyll in the green leaves?
What is the Ecology ?
what would be the fate of life on earth 10 yrs down the lane.
PVC is obtained by the polymerization of 1 Propene 2 Vinyl chloride 3 Styrene 4 Acetylene
Which of the following gases is used as an illuminant in lamps used by hawkers? 1 Methane 2 Ethylene 3 Acetylene 4 Hydgrogen
The inert gas which is substituted for nitrogen in the air, used by deep sea divers for breathing, is 1 Helium 2 Argon 3 Krypton 4 Xenon