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Alpha particles are repelled by atomic nuclei because alpha particles have a positive charge, and so do atomic nuclei. The positive charge on the surface of a nucleus will repel another positive charge, like an alpha particle, because of the law of electrostatics. That's the simple answer. And it is correct. But know this: Alpha particles were used in the early investigations of atomic structure and atomic interactions. The alpha particles were used to bombard atomic nuclei, and there are times when an alpha particle will be absorbed by an atomic nucleus. Somehow the laws of electrostatics took the day off, and the fact that absorption took place opens the door to discovery and discussion of other atomic forces. Word up.
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What is a process in which atomic nuclei of unstable isotopes release fast-moving particles and energy?
Nuclear decay is the process in which atomic nuclei of unstable isotopes release fast-moving particles, such as alpha or beta particles, along with energy in the form of gamma radiation. This process is also known as radioactive decay and results in the transformation of the unstable isotope into a more stable one.
Which term is defined as the emission of energy from subatonic particles?
Radioactivity is the term defined as the emission of energy from subatomic particles, such as alpha particles, beta particles, and gamma rays. These emissions occur from the spontaneous decay of unstable atomic nuclei.
Who provided evidence for the existence of an atomic nucleas?
In 1911, the scientist Ernest Rutherford directed a beam of alpha particles (each one equivalent to a helium nucleus, with 2 protons and 2 neutrons) at a thin sheet of gold foil - many of the alpha particles (with a charge of +2) were deflected straight back, repelled by the positively charged atomic nuclei within the gold foil. This provided experimental evidence for the existence of the nucleus for the first time.
What type of nuclear reaction releases energy through the combination of atomic nuclei, unlike fission reactions which involve the splitting of atomic nuclei?
The type of nuclear reaction that releases energy through the combination of atomic nuclei is called fusion. This is different from fission reactions, which involve the splitting of atomic nuclei.
Is gamma radiation made from uncharged particles?
No, gamma radiation is made of photons, which are non-charged particles with no mass. They have high energy and are produced from the decay of unstable atomic nuclei or during nuclear reactions.
Why did the path of only some alpha particles deviate in Rutherford experiment?
Alpha particles are positively charged helium nuclei. As such, they are repelled by other positively-charged nuclei. In Rutherford's experiment, he used gold foil. Since gold atoms have large, massive nuclei, the alpha particles were easily repelled by the large gold atom nuclei, and they were scattered in different directions.
What is an atomic battery?
An atomic battery is a device which converts the energy of particles emitted from atomic nuclei into electrical energy.
Beta particles are attracted by atomic nuclei because?
Beta particles are electrons. Electrons have a negative charge. Nuclei are protons, with a positive charge, and neutrons, with no charge; thus the nucleus is positively charged. Positively charged particles are attracted to negatively charged particles, and vice versa.
What is a process where two nuclei or particles interact to form different particles?
Nuclear reaction is a process where two nuclei or particles interact to form different particles. This process can involve fusion, fission, or other types of interactions between atomic nuclei.
Why are neutrons considered ideal particles for nuclear fission?
Neutrons are ideal for nuclear fission because they carry no charge and easily penetrate atomic nuclei, making them efficient at inducing fission reactions. They can collide with heavy nuclei like uranium-235, causing them to split and release more neutrons, which can lead to a self-sustaining chain reaction.
What is a subatomic particle that is part of a structure of the atomic nucleus?
Atomic nuclei have two kinds of subatomic particles, which are protons and neutrons.
A process in which atomic nuclei of unstable isotopes release fast-moving particles and energy?
Nuclear fission
What can you msure with 1 femtometer?
A femtometer is a unit used to measure extremely small distances, typically on the scale of atomic nuclei. With 1 femtometer, you can measure the size of atomic nuclei or the spacing between nucleons within a nucleus. It is useful for studying particles at the subatomic level.
What is the study of the structure of atomic nuclei?
The study of the structure of atomic nuclei is called nuclear physics. This field focuses on the properties and behavior of atomic nuclei, including their composition, size, stability, and interactions with other particles. Nuclear physics plays a crucial role in understanding processes such as nuclear reactions and nuclear energy generation.
In Rutherfords gold foil experiment particles in dense atomic nuclei caused some alpha particles to bounce straight back from the gold foil.?
positive
Unstable atomic nuclei that release fast particles and energy are?
dii cuu nGah aLam ei..tAnuNg pfah..
What is the composition of radioactivity?
Radioactivity is the emission of radiation from unstable atomic nuclei. It can be in the form of alpha particles (helium nuclei), beta particles (electrons or positrons), or gamma rays (high-energy photons).
