Structure of Atom NEET Questions

The spectrum of He is expected to be similar to that

Which one of the following is not isoelectronic with O2–?

According to the law of photochemical equivalence the energy absorbed
(in ergs/mole) is given as (h = 6.62 × 10^–27 ergs, c = 3 × 1010 cm s^–1, N_A = 6.02 × 10²³ mol^–1)

Which series in the spectrum of hydrogen atoms falls in the visible region?

An electron's energy in the hydrogen atom's nth Bohr orbit equals

For given energy, E = 3.03 × 10^–19 joules corresponding wavelength is (h = 6.626 × 10^–34 J sec, c = 3 × 10⁸ m/sec)

If Planck’s constant is 6.63 × 10^–34 Js, the speed of light is 3 × 10¹⁷ nm s^–1 and the frequency is 6 × 10¹⁵ s^–1, then the closest value of wavelength will be

The hydrogen atoms (n = 1) Bohr orbit radius is roughly 0.530. The first excited state's (n = 2) orbit's radius is (in units)

Which ion is isoelectronic with Be²⁺?

The value of Planck’s constant is 6.63 × 10^–34 J s. The velocity of light is 3.0 × 10⁸ m s^–1. Which value is closest to the wavelength in nanometers of a quantum of light with a frequency of 8 × 10¹⁵ s^–1?

Which of the following transitions in the hydrogen atom will result in the least energy photon, according to the Bohr theory?

Which ion is isoelectronic with CO

A hydrogen atom's radius in its ground state is 0.53. The Li²⁺ ion's (atomic number = 3) radius in a similar state is

An electron in the second Bohr orbit of a hydrogen atom has a de Broglie wavelength of [Assuming that Bohr radius, a₀ = 52.9 pm].

How much energy will be released or absorbed when an electron hops from n = 1 to n = 3 in Bohr's concept of an atom?

If r is the radius of the first orbit and n is the number of orbits, then

A ball weighing 0.66 kg is moving at a speed of 100 m/s. The related wavelength is going to be (h = 6.6 × 10^–34 J s)

What will be the longest wavelength line in the Balmer series of spectra?

How many protons, neutrons, and electrons are in Lu

If the energy of the hydrogen atom's second Bohr orbit is -328 kJ mol^-1, the energy of the fourth Bohr orbit would be

Isoelectronic species are

Who modified Bohr's theory by adding elliptical orbits for the electron path?

Calculate the energy of light if the wavelength of light is 45 nm. (Planck’s constant, h = 6.63 × 10^-34J s, speed of light, c = 3 × 10⁸ m s^–1)

Assuming that the hydrogen atoms electron has an ionization energy of 2.18 10^-18 J atom-1 and a heat capacity of 6.626 10^-34 J s, the frequency of radiation released when the electron moves from position n = 4 to n = 1 will be.

The initial excited state of a hydrogen atom has an energy of -3.4 eV. then confirm the K.E. of the identical hydrogen atom orbit.