An alpha particle is A. a helium nuclei. B. any positively charged nucleus. C. an X-ray....
An alpha particle is
| A. a helium nuclei. |
| B. any positively charged nucleus. |
| C. an X-ray. |
| D. None of the above. |
Homework Answers
an alpha particle is a positively charged particle with charge equal to that of 2 protons and mass nearly equal to 4 protons
a helium atom has 2 protons and 2 nuetrons in the nucleus and 2 electrons revolving around the nucleus.
when a helium atom is doubly ionized i.e., the 2 electrons are removed, it is left with the 2 potons and 2 neutrons
as we know the mass of proton and nuetron is nearly the same, we represent an alpha particle with the nucleus of a helium
so the correct option is A
Add Answer to:
An alpha particle is
A. a helium nuclei.
B. any positively charged nucleus.
C. an X-ray....
An alpha particle is a helium nucleus and therefore consists of two protons and two neutrons....
An alpha particle is a helium nucleus and therefore consists of two protons and two neutrons. Such particle has an initial velocity of +1.60*10^3 m/ s x and enters a region where the electric field is E =- 500.N / C x . a) How much time passes before the alpha particle comes to rest? b) How far has the alpha particle traveled during this time? b) How far has the alpha particle traveled during this time?
Please show all equations and work An alpha particle (nucleus of a helium atom) has a...
Please show all equations and work An alpha particle (nucleus of a helium atom) has a speed of 3x10^6 m/s and moves in a circle of radius 10 cm in the x/y-plane due to a uniform magnetic field. (a) What is the magnitude and direction of the magnetic field? (b) What is the cyclotron frequency of the alpha particle? (c) Through what potential difference was it accelerated? (d) What is its energy in units of electron-volts?
An alpha particle (the nucleus of a helium atom) consists of two protons and two neutrons,...
An alpha particle (the nucleus of a helium atom) consists of two
protons and two neutrons, and has a mass of 6.64×10−27kg. A
horizontal beam of alpha particles is injected with a speed of
1.3×105m/s into a region with a vertical magnetic field of
magnitude 0.180 T . A) How long does it take for an alpha particle
to move halfway through a complete circle? B) If the speed of the
alpha particle is doubled, does the time found in...
A uranium-238 nucleus at rest undergoes radioactive decay, splitting into an alpha particle (helium nucleus) with...
A uranium-238 nucleus at rest undergoes radioactive decay, splitting into an alpha particle (helium nucleus) with mass 6.64×10-27 kg and a thorium nucleus with mass 3.89×10-25 kg. The measured kinetic energy of the alpha particle is 4.49×10-13 J. After the decay, what is the magnitude of the momentum of the thorium nucleus? Incorrect. Tries 1/20 Previous Tries After the decay, what is the kinetic energy of the thorium nucleus? 7.664×10-15 J You are correct. Your receipt no. is 158-4017
An alpha particle is a nucleus of helium. It has twice the charge and four times...
An alpha particle is a nucleus of helium. It has twice the
charge and four times the mass of the proton. When they were very
far away from each other, but headed toward directly each other, a
proton and an alpha particle each had an initial speed of 8.2×10−3
c, where c is the speed of light. What is their distance of closest
approach? There are two conserved quantities. Make use of both of
them. (c = 3.00 × 108...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9 x 100 eV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum of the alpha particle? (You may assume its speed is small...
A proton and an alpha particle (the nucleus of a helium atom, containing two protons and...
A proton and an alpha particle (the nucleus of a helium atom, containing two protons and two neutrons) traveling at the speed enter a uniform magnetic field. The velocity vector of each particle is perpendicular to the magnetic field. What is the ratio of the radii of their circular orbits (r proton/ralpha)? 0.5 O 1.0 1.5 O d 2.0 O 4.0
An alpha particle (the nucleus of a helium atom) has a mass of 6.64 ✕ 10−27...
An alpha particle (the nucleus of a helium atom) has a mass of 6.64 ✕ 10−27 kg and a charge of +2e. What are the magnitude and direction of the electric field that will balance the gravitational force on the particle? magnitude _____________ N/C direction ---Select--- up left down right
a proton and an alpha particle (the nucleus of a helium atom, containing two protons and...
a proton and an alpha particle (the nucleus of a helium atom, containing two protons and two neutrons) traveling at the speed enter a uniform magnetic field. The velocity vector of each particle is perpendicular to the magnetic field. What is the ratio of the radii of their circular orbits (r proton/r alpha) ? ~ 0.5 ~ 1.0 ~ 1.5 ~ 2.0 ~ 4.0
1. What do atoms contain? A) negatively charged neutrons and positively charged nucleus B) negatively charged...
1. What do atoms contain? A) negatively charged neutrons and positively charged nucleus B) negatively charged electrons and neutral nucleus C) negatively charged electrons and positively charged nucleus D) positively charged electrons and negatively charged nucleus 2. What particles make up the nucleus? A) protons B) neutrons C) protons and electrons D) protons and neutrons E) electrons and neutrons 3. Atoms contain A) neutrons B) electrons C) electrons and neutrons D) electrons, protons, and neutrons E) protons D 4. Which...
An alpha particle (the nucleus of a helium atom) consists of two
protons and two neutrons, and has a mass of 6.64×10−27kg. A
horizontal beam of alpha particles is injected with a speed of
1.3×105m/s into a region with a vertical magnetic field of
magnitude 0.180 T . A) How long does it take for an alpha particle
to move halfway through a complete circle? B) If the speed of the
alpha particle is doubled, does the time found in...
An alpha particle is a nucleus of helium. It has twice the
charge and four times the mass of the proton. When they were very
far away from each other, but headed toward directly each other, a
proton and an alpha particle each had an initial speed of 8.2×10−3
c, where c is the speed of light. What is their distance of closest
approach? There are two conserved quantities. Make use of both of
them. (c = 3.00 × 108...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9 x 100 eV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum of the alpha particle? (You may assume its speed is small...
A proton and an alpha particle (the nucleus of a helium atom, containing two protons and two neutrons) traveling at the speed enter a uniform magnetic field. The velocity vector of each particle is perpendicular to the magnetic field. What is the ratio of the radii of their circular orbits (r proton/ralpha)? 0.5 O 1.0 1.5 O d 2.0 O 4.0
1. What do atoms contain? A) negatively charged neutrons and positively charged nucleus B) negatively charged electrons and neutral nucleus C) negatively charged electrons and positively charged nucleus D) positively charged electrons and negatively charged nucleus 2. What particles make up the nucleus? A) protons B) neutrons C) protons and electrons D) protons and neutrons E) electrons and neutrons 3. Atoms contain A) neutrons B) electrons C) electrons and neutrons D) electrons, protons, and neutrons E) protons D 4. Which...
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