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Isotopes
Isotopes are atoms that have different number of neutrons, so they have a different mass number than the other atoms in an element.
1,075 Questions
Which radioactive isotope is used to monitor the thickness of metal strips?
Caesium-137 as it decays by beta emission.
halflife
The Atomic Mass is, basically, the sum of the protons (the "atomic number"), and the number of neutrons.
Is isotopes the most fundamental substance of matter?
No.
The most fundamental parts of matter are: quarks and electrons.
On what basis mass spectrometer separate isotopes of different element?
The isotopes have different masses.
Do radioactive isotopes need thousands of years to decay?
Half-lives of radioactive isotopes are between several nanoseconds and more than 10e22 years.
Isotope effect is the phenomenon where the rate of a chemical or physical process is influenced by the substitution of one isotope (e.g., deuterium) for another (e.g., hydrogen) while keeping the chemical structure the same. This effect arises from the differences in mass and vibrational frequencies of isotopes, leading to changes in bond strengths and reaction rates. Isotope effects are often used to gain insights into reaction mechanisms and dynamics.
You still need to know the number of protons present in order to find the atomic mass.
Firebricks, or refractory bricks, are made from ceramic and/ or clay. The substances in their makeup are not radioactive.
Why does the polonium (po) become lead (pb) after a decay?
Polonium-210 lose an alpha particle and become lead-206.
How is an isotope different from an atom?
Isotopes aren't mutually exclusive of an atom - that is, you don't have to be one or the other (in fact, it is both).
An isotope of an atom is an atom that has an unusual atomic weight, usually caused by having a non-regular amount of neutrons (they don't change the charge, so you can shove as many in an atom as you want, within limits).
How are isotopes different from state atoms?
The atoms of a chemical element can exist in different types. These are called isotopes. They have the same number of protons (and electrons), but different numbers of neutrons. Different isotopes of the same element have different masses.
How are radio isotopes used in the industry?
Examples are:
- nondestructive control
- sterilization of foods, drugs, etc.
- tracers
- sources of energy
- treatment of wastes
- radiopolymerization
- radiofluorescent paints
etc.
How can radioactive isotopes be ueds as tracers?
Measuring the radioacivity of these isotopes can be tracked the course of a technological process because radioisotopes migrate themselves.
Who discovered the mass of a proton and electron and the occurrence of isotopes?
Proton: Ernest Rutherford
Electron and isotopes: J. J. Thomson
Which isotopes are most likely to decay?
Isotopes with a high atomic number and/or an unstable ratio of protons to neutrons are more likely to decay. Generally, isotopes further from the line of stability on the periodic table are more likely to undergo radioactive decay.
