Neptunium is radioactive because it has an unstable nucleus due to an excess of neutrons compared to protons. This instability causes it to undergo radioactive decay, primarily through beta decay, where a neutron is converted into a proton while emitting a beta particle. As a result, neptunium has a range of isotopes with varying half-lives, contributing to its classification as a radioactive element. This characteristic is typical of many actinides, where heavy Atomic Mass leads to instability.
radioactive
Radium is a radioactive element that emits alpha, beta, and gamma rays. It is silvery-white in color and is highly radioactive due to its unstable atomic structure. Radium is chemically reactive, with properties similar to calcium.
All uranium compounds are radioactive to some degree.
Zirconium does have radioactive isotopes, but the main ones used in industry are not radioactive.
Ordinary water is not radioactive, so it has no half-life.
radioactive
Simply by being radioactive or not. An isotope is an atomic variant of the same element, and has the same chemical characteristics, but is not necessarily radioactive.
A radioactive atom is an atom of an element with an unstable nucleus.
Examples characteristics: half life, specific activity, radiotoxicity.
J. Blachot has written: 'Table of radioactive isotopes and of their main decay characteristics'
all atoms with an atomic number under 40
The medical specialty that studies the characteristics and use of radioactive substances in the diagnosis of disease is called nuclear medicine. This field involves using radioactive isotopes for imaging and treatment, allowing physicians to assess organ function and identify various medical conditions. Techniques such as PET and SPECT scans are commonly employed in nuclear medicine to visualize physiological processes in the body.
Fermium is a metal, solid, member of the actinoids family, period 7, artificial, radioactive, atomic number 100, etc.
- a radioactive material emit nuclear radiations as alpha, beta, gamma, neutrons - a radioactive material disintegrate in time
1. Uranium is a possible polluting agent of the natural environment. 2. Uranium is a toxic and a radioactive chemical element. 3. Uranium release radium and radon. 4. Radioactive wastes are dangerous and need to be isolated. Plutonium: the same characteristics, but it is more toxic and radioactive. Hydrogen: it is a cause of severe explosions.
Radium is a radioactive element that emits alpha, beta, and gamma rays. It is silvery-white in color and is highly radioactive due to its unstable atomic structure. Radium is chemically reactive, with properties similar to calcium.
Some characteristics that indicate an atom is unstable include having too many or too few neutrons compared to protons in the nucleus, being in an energetically unfavorable state, and having an imbalance of forces that can lead to radioactive decay. Unstable atoms usually undergo radioactive decay to become more stable.