mass deficiency

Thân thiện

The scientist calculates the mass deficiency of the helium nucleus.

Definition

1. Noun:
   • The difference between the mass of an atomic nucleus and the sum of the masses of its individual, unbound protons and neutrons: This mass difference, also known as mass defect, arises because energy is released when nucleons bind together to form a nucleus. This released energy (binding energy) results in a loss of mass, as described by Einstein's equation E=mc².

Usage Examples

• Noun:
  • The mass deficiency of a helium-4 nucleus is a key demonstration of nuclear binding energy.
  • Scientists calculate the stability of an isotope by measuring its mass deficiency.

Advanced Usage

• "to account for the mass deficiency": to explain or calculate the missing mass converted to binding energy.
  • Einstein's theory of relativity accounts for the mass deficiency in nuclear reactions.

Variants and Related Words

• Mass defect (n): A synonymous term for mass deficiency.
  • The terms 'mass defect' and 'mass deficiency' are often used interchangeably in nuclear physics.

Synonyms

• Mass defect: The difference in mass between a nucleus and its constituent nucleons.
• Binding energy equivalent: The mass that is equivalent to the nuclear binding energy.

Related Phrases

• Nuclear binding energy: The energy equivalent of the mass deficiency, which holds the nucleus together.

Học thuật

Noun

1. the amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles

Từ đồng nghĩa

• mass defect