Answer:1:3
Answer:1:3
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Answer:sum of the number of protons and neutrons is same but the number of protons is different.
Answer:Overall neutrality of atom.
Answer:The mass of electron is equal to the mass of neutron.
Answer:Characteristics of cathode rays depend upon the nature of gas present in the cathode ray tube.
The density of dots in a region represents the probability density of finding electrons in the region.
On the basis of above diagram which of the following statements is incorrect?
Answer:The probability density of electrons for 2s orbital decreases uniformly as distance from the nucleus increases.
Answer:1s2 2s2 2p6 3s2 3p6 3d9 4s2
Answer:Electrons move in a circular path of fixed energy called orbits.
Answer:5, 0, 0, + 1/2
Answer:Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius
Answer:743 nm
Answer: – 30.6 eV
Answer:Li+2
(c = 3×108 ms–1 and NA = 6.02×1023 mol–1)
Answer:494 nm
Answer:K+, Cl–, Ca2+, Sc3+
Answer:12 and 5
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