Test: Structure of Atom (May 11) - NEET MCQ

3 eV
Co_rite Actual
Correct option

= 8 – 5
= 3eV
∴ V₀ = 3 eV

Zero
Refrence level is I^st orbit
itself T. E. = 0
Ratio becomes zero

A photon is the quantum of electromagnetic radiation. The term quantum is the smallest elemental unit of a quantity, or the smallest discrete amount of something. Thus, one quantum of electromagnetic energy is called a photon. The plural of quantum is quanta.

An electron bound to the nucleus by the mutual attraction between unlike charges, has a negative energy. Its most tightly bound to the nucleus nearer it is to the nucleus. That is an electron has least energy when it is in the n=1 shell. As the electron moves away from the nucleus its energy becomes less and less negative, i.e. its energy increases. When the electron is not under the attractive Coulomb force of the nucleus its potential energy is zero and whatever energy it has now, is kinetic energy, which is always positive. So farther the electron more energy it has.

Is → As it is the ground state

Orbital Angular momentum is given by [√l(l+1)]×h/2π
For s orbital, we have l = 0
Therefore orbital angular momentum = 0

Spin quantum number do not follow Schrodinger Wave Equation because it is related to spin of the electrons.It is needed to explain Pauli's exclusion principle which sates that no two electrons can share the same state (i.e. have the same quantum numbers) at the same time.Therefore, if the quantum numbers n, l and m are same then the electrons should have different spin.

 

V² = 4.32 × 10¹³
V² = 43.2 × 10¹²
V = 6.57 × 10⁶

IE₁ + IE₂ + IE₃ = 19800
IE₂ + IE₃ = 19800 – 520
IE₂ + IE₃ = 19280

We know that, for wave no.

Bohr's theory was based upon some postulations of classical physics and some postulations of the newly proposed quantum theory of Planck. 

0.0199 m

Given :
P = 1 kW
P = 1 × 10³ watt
E = 10³ J/S in one sec
v = 880 Hz
∴ E = nhv
⇒  10³ x  ×  6.626 × 10^–34 × 880
⇒  x = 1.71 × 10³³ in one sec