B. An atom whose nucleus is unstable and emits particles and and energy. This is a Radioactive isotope.
The atomic nuclei of constituent atoms of the same element include the same number of protons but different numbers of neutrons. Radio isotopes are an element's radioactive isotopes. They can alternatively be described as atoms with an excess of energy in their nucleus or atoms with an unstable ratio of neutrons to protons. A radioisotope's unstable nucleus can form either spontaneously or as a result of a deliberate alteration of the atom. Radioisotope production can occur using either a cyclotron or a nuclear reactor. Molybdenum-99, which has a high neutron content, can be produced most effectively in nuclear reactors, whereas fluorine-18, which has a high proton content, can be produced most effectively in cyclotrons. Uranium is the most well-known illustration of a radioisotope that is found naturally. Uranium-238 constitutes all naturally occurring uranium with the exception of 0.7%.
Learn more about Radioisotopes
brainly.com/question/19472025
#SPJ9
answer
Explanation:
It may exist quickly but it may benefit the anointing in our environment
The greatest difference in high and low tides occur during spring tides when the sun and moon are aligned
A(n) <u>anticondon </u>is a group of three bases on trna that is complementary to a specific mrna codon. poly-a tail cap codon anticodon
The main function of an anticondon is to form a pair with the condom by mating in order to form an RNA chain, this chain is a sequence of three nucleotides that form a unit of genetic code in a transfer RNA molecule.
<h3>What is molecule?</h3>
It is the union of two or more atoms by chemical bonds, conserving the physical and chemical properties of that substance.
For example: the water molecule is H2O.
Learn more about molecule at: brainly.com/question/26044300
#SPJ4