Which of the following has the same number of electrons as an alpha particle? (Chemistry)?
Nucleus of Helium (which consists of 2 neutrons and 2 protons) is called alpha particle. Hence alpha particle must have:- Protons = 2 Neutrons = 2 Electrons = 0 In your options A) H have 1 proton, 0 neutron and 1 electron B) H2 have 2 protons, 0 neutrons and 2 electrons C) H+ have 1 proton, 0 neutron and 0 electron D) H2O have 10 protons, 8 neutrons and 10 electrons ∴ The one with 0 electrons is H+ Hence C is correct
Which of the following particles has the same mass as an electron but a positive charge and is sometimes emitt?
Which of the following particles has the same mass as an electron but a positive charge and is sometimes emitted from the nucleus during radioactive decay? A) beta particle B) alpha particle C) positron D) gamma ray
An electron and alpha particle have the same K.E., which one will have the largest de Broglie wavelength? I want for 1 mark only.
Hope it helps.
How many electrons are in an alpha particle?
Zero.By definition an alpha particle is an Helium-4 nucleus (2 protons and 2 neutrons) with no electrons.Alpha particles are emitted by some radioactive materials, usually very heavy materials with atomic mass number of 200 or more (i.e. the sun of proton and neutrons over 200), such as Bismuth-209 or Radon-218.Alpha-decay occurs in large nuclei, when the electromagnetic repulsion between protons starts to become stronger than the residual strong force that holds the nucleus together.
Which one of the following contain same number of electron as ALPHAparticle(2He4)?
The H+ is the correct answer. An alpha particle is basically a He atom that has no electrons. Therefore it has a 2+ charge. Alpha particle: 2 protons, 2 neutrons, 0 electrons = 2+ H+: 1 proton, 0 neutrons, 0 electrons = 1+ This is the only choice with a positive charge like the alpha particle.
Can an alpha particle have an electron? Would it still be an alpha particle if it has an electron?
As others have already explained, by definition an alpha particle has no electrons. However, when alpha particles are produced in the presence of ordinary atoms and molecules, they will quickly steal electrons from their surroundings and turn into ordinary atoms of He-4 (helium 4).This is exactly how all of the helium that we mine through natural gas wells was produced. It accumulated from billions of years of radioactive decay of uranium, thorium and their many intermediate decay products, nearly all of which are alpha emitters. So while helium is technically a “renewable” resource, the rate at which it is being naturally renewed is quite slow.
Out of electrons, protons, and alpha particles, which has the maximum de Broglie wavelength?
The de Broglie wavelength of a moving particle is given by h/p, where h is the Planck’s constant and p is the momentum of the particle given by product of its mass and the velocity with which the particle is moving. In your question, you haven't mentioned anything about the velocities of the respective particles. So, assuming the three particles travel with the same velocity, the particle with smallest mass will have longest de Broglie wavelength. Among electron, proton and alpha particle, the electron is the lightest and hence will have the maximum de Broglie wavelength. The alpha particle being the heaviest will have the shortest de Broglie wavelength.
How many protons, neutrons, and electrons are in an alpha particle?
alpha particle is a helium nuclei. He+2 No. of neutrons=2 No. of protons=2 No. of electrons=0
Proton, electron,neutron & alpha particles have same momentum,which of them have highest kinetic energy?
Electron. All have the same momentum (mv) so the one having less mass have higher velocity ie electron have higher velocity since it is lightest . And kinetic energy =1/2 mv^2 =1/2 mv x v so kinetic energy is directly proportional to the velocity since mv (momentum is same). Since electron have higher velocity it have higher kinetic energy