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The e/m value is maximum for ____gas because of ____value of “m” for positive rays obtained from it.
The radius of an electron orbit in a hydrogen atom is of the order of
If n = 4 it will contain sub shells
Quantum numbers specify the _______of electron.
Who discovered positive rays also called protons and when?
An orbital can accommodate at the most _electrons
According to Bohr's theory Electron should move _nearer to nucleus in an orbit of _radii
The radius of Bohr's atom depends on the following
Greater the value of principal quantum number n', the distance of electron from nucleus will be________.
According to________ theory, atoms were the ultimate particles that cannot be divide further.
The value of Principal quantum number “n” represent:
The shapes of subshells is _if value of azimuthal quantum number 'l' is 2
The 'm' quantum number describes the _______of electron
The order of size of 's' orbital is as follows:
The arrangement of sub shells or orbitals is according to _rule
When an electron remains between orbit, its momentum is
_____cathode is used in discharge tube experiment for discovery of protons
Spectrum is the visual display or ________of component of white light when it is passed through prism
The value of Planck's constant 'h' is:
In which direction Cathode rays deflected in the presence of magnetic field?
An electron in an atom is completely described by its:
It is not possible for us to measure exact position and exact momentum of electron simultaneously is the statement of:
If a hydrogen atom remains in its first excited level, how many times will its radius be greater than Bohr's radius.
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