The Alpha Particle Scattering Experiment. They took a thin gold foil having a thickness of 2.1×10-7 m and placed it in the centre of a rotatable detector made of zinc sulfide and a microscope. Then, they directed a beam of 5.5MeV alpha particles emitted from a radioactive source at the foil.

The charge on a proton is +1.6 × 10 −19 C and that on an electron is −1.6 × 10 −19 C. Does it mean that the electron has 3.2 × 10 −19 C less charge than the proton?

An electron, a proton, a deuteron and an α − particle are accelerated by the same potential V. If λ e, λ p, λ d and λ α represents the de-Broglie wavelengths of electron, proton, deuteron and α − particle respectively. Which of the following statement(s) is/are correct.

Identify an alpha particle. A) _0^1 n B) _+1^0 e C) _1^0 e D) _0^0 gamma E) _2^4 He Choose the bidentate ligand from the substances below.

An alpha particle (consisting of two protons and two neutrons) is moving in a circle at constant speed, perpendicular to a uniform magnetic field applied by some current-carrying coils. The alpha particle makes one clockwise revolution every 84 nanoseconds (see the figure). O If the speed is small compared to the speed of light, what is the ...

An alpha particle (q = +2e, m = 4.00 u)travels in a circular path of radius 7.00cm in a magnetic field with B = 1.60 T. Calculate the following values. (a) the speed of the particle 1 m/s (b) its period of revolution 2 s (c) its kinetic energy 3 eV (d) the potential difference through which it would have to beaccelerated to achieve this energy 4 V

One characteristic that makes alpha radiation different from beta and gamma radiation is the type of radioactive decay it emits. Which description best describes an alpha particle? O An alpha particle is attracted to a positive electrode. O An alpha particle has no atomic number. O An alpha particle has no mass.

A helium nucleus (also called as α particle) consists of two protons and two neutrons. For a singly ionized helium atom H e + , the electron's speed in the second orbit (n=2) is ___ × 10 6 m / s . View Solution

An alpha particle (the nucleus of a helium atom) has a mass of 6.64 x 10-27 kg and a charge of + 2e. What are the (a) magnitude and (b) direction of the electric field that will balance the gravitational force on the particle? Draw the free body diagram. (I know the only two forces that we need are Fg and Fe, but not sure how to draw the diagram.)

An alpha particle (q = +2e, m = 4.00 u) travels in a circular path of radius 5.52 cm in a uniform magnetic field with B = 1.07 T. Calculate (a) its speed, (b) its period of revolution, (c) its kinetic energy, and (d) the potential difference through which it would have to …