Table of Contents
- 1 What does it mean if an isotope is heavy?
- 2 What is the difference between an element and an isotope of an element?
- 3 How do radioactive isotopes differ from isotopes?
- 4 What is the difference between an element and an atom?
- 5 What is meant by half-life of a radioactive isotope?
- 6 What is the difference between radioactive isotopes and stable isotopes?
- 7 What is the difference between normal and radioactive?
What does it mean if an isotope is heavy?
a stable atom in which there are more neutrons than in the normal isotope of the element, giving it a greater mass.
What is a radioactive isotope of an element?
Radioisotopes are radioactive isotopes of an element. They can also be defined as atoms that contain an unstable combination of neutrons and protons, or excess energy in their nucleus.
What is the difference between an element and an isotope of an element?
Elements are simply what you see on the periodic table. E.g. carbon, oxygen, hydrogen etc. Isotopes are elements with different masses. So isotopes have the same amount of protons but with different amounts of neutrons.
What is the difference between radioactive isotope and half-life?
Not only does it decay by giving off energy and matter, but it also decays at a rate that is characteristic to itself. The rate at which a radioactive isotope decays is measured in half-life….After this reading this section you will be able to do the following:
| Radioisotope | Half-life |
|---|---|
| Uranium-238 | 4.5 billion years |
How do radioactive isotopes differ from isotopes?
Basic principles. Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. Radioactive (unstable) isotopes have nuclei that spontaneously decay over time to form other isotopes.
What is the heaviest isotope?
Bismuth-209 (209Bi) is the isotope of bismuth with the longest known half-life of any radioisotope that undergoes α-decay (alpha decay). It has 83 protons and a magic number of 126 neutrons, and an atomic mass of 208.9803987 amu (atomic mass units)….Bismuth-209.
| General | |
|---|---|
| Protons | 83 |
| Neutrons | 126 |
| Nuclide data | |
| Natural abundance | 100\% |
What is the difference between an element and an atom?
An atom is the part of an element. A particular element is composed of only one type of atom. Atoms are further composed of subatomic particles called electrons, protons and neutrons. Elements can combine with each other to form molecules via chemical reaction.
What is the difference between an element and an atom How is an isotope related to an atom?
Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.
What is meant by half-life of a radioactive isotope?
half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive …
What is a radioactive isotope example?
Radioactive isotopes of radium, thorium, and uranium, for example, are found naturally in rocks and soil. Uranium and thorium also occur in trace amounts in water. Other radioactive isotopes are produced by humans via nuclear reactions, which result in unstable combinations of neutrons and protons.
What is the difference between radioactive isotopes and stable isotopes?
Stable isotopes do not decay into other elements. In contrast, radioactive isotopes (e.g., 14C) are unstable and will decay into other elements. The less abundant stable isotope(s) of an element have one or two additional neutrons than protons, and thus are heavier than the more common stable isotope for those elements.
What is the difference between more common and less common isotopes?
The less abundant stable isotope(s) of an element have one or two additional neutrons than protons, and thus are heavier than the more common stable isotope for those elements.
What is the difference between normal and radioactive?
In other words, radioactivity is the capability to release radiation. There are a large number of radioactive elements. In a normal atom, the nucleus is stable. However, in the nuclei of radioactive elements, there is an imbalance of neutrons to protons ratio; thus, they are not stable.
Do all isotopes of the same element have the same mass number?
Since the neutron number is different, their mass number also differs. However, the isotopes of the same element have the same number of protons and neutrons. Different isotopes are present in varying quantities and, this is given as a percentage value called relative abundance.