Mushkovic PHYSICS   -   Physics

Beta ray emitted by a radioactive substance is:

Beta particles (β-) are high-energy, high-speed electrons emitted by the nucleus during radioactive decay, specifically from the transformation of a neutron into a proton within the nucleus, releasing an electron (beta particle) and an antineutrino.
Mushkovic PHYSICS   -   Physics

When a helium atom loses an electron, it becomes:

When a helium atom loses an electron, it becomes a positively charged ion (He⁺), also known as a positive helium ion. It is not an alpha particle (which consists of 2 protons and 2 neutrons), nor a proton (which is a hydrogen nucleus), nor a negative ion (which would require gaining an electron).
lorrin mike PHYSICS   -   Nuclear Physics

What is the approximate binding energy per nucleon in a typical stable nucleus?

The binding energy per nucleon represents the average energy required to completely separate a nucleus into its individual nucleons. It is approximately 8 MeV for stable nuclei, indicating the stability and compactness of nuclear structure.
lorrin mike PHYSICS   -   Nuclear Physics

Which of the following particles has the same charge as an electron but approximately 1836 times greater mass?

A proton has the same charge as an electron (positive) but is much heavier, with a mass approximately 1836 times greater than that of an electron.
lorrin mike PHYSICS   -   Nuclear Physics

What is the fundamental force responsible for binding protons and neutrons together in the nucleus?

The strong nuclear force is the fundamental force that binds protons and neutrons (nucleons) together in the nucleus. It is a short-range force that overcomes the repulsive electromagnetic force between protons.
lorrin mike PHYSICS   -   Nuclear Physics

Which nuclear reaction is responsible for the energy production in the Sun and other stars?

Nuclear fusion is the process where light atomic nuclei combine to form heavier nuclei, releasing a significant amount of energy. It is the primary energy source for stars, including the Sun.
lorrin mike PHYSICS   -   Nuclear Physics

Which of the following particles is emitted during beta-minus decay?

Beta-minus decay involves the emission of an electron (beta particle) from a nucleus. This occurs when a neutron in the nucleus converts into a proton, releasing an electron and an antineutrino.
lorrin mike PHYSICS   -   Atomic Physics

What is the term for the minimum amount of energy required to remove an electron from the outermost shell of an atom in its ground state?

Ionization energy is the energy required to completely remove an electron from an atom or ion in its ground state. It is a measure of the atom's ability to hold onto its electrons.
lorrin mike PHYSICS   -   Atomic Physics

Which of the following transitions in the hydrogen atom results in the emission of the highest energy photon?

The energy of emitted photons in hydrogen atom transitions is highest when the electron falls from a higher energy level to a lower one. The transition from n = 4 to n = 5 corresponds to the highest energy difference among the options provided.
lorrin mike PHYSICS   -   Atomic Physics

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶?

The electron configuration given belongs to Xenon (Xe), a noble gas with atomic number 54.

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