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Atomic Structure

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Q.

Which of the following is false?

Q.

Which of the following is true?

Q.

The principal quantum number of an atom is related to the

Q.

reacts with water forming propyne.  has

Q. What will be the wavelength of the emitted radiations when electron humps from third orbit to the first orbit in a hydrogen atom?

λ = 1.02 X 10^(-5) cm/wave

Q. what is IE?

Ionization energy, also called ionization potential, in chemistry and physics, the amount of energy required to remove an electron from an isolated atom or molecule

Q. As the nuclear charge increases from neon to calcium, orbital energy?

with increase in nuclear charge, energy of the orbital increases very rapidly.

Q. The value of Bohr radius for hydrogen atom is?

0.529 *10^ -8 cm

Q. A mass spectrograph is an instrument which is capable of differentiating and identifying particles?

In Aston’s mass spectrograph the particles with different e/m ratios are deflected to different extents by mutually perpendicular magnetic and electric fields