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That some atoms are not stable, and that they release mass from their nuclei to become other isotopes or elements. Until the process of fusion was understood, nuclear decay was the only known way for one element to become another element.
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Discuss what cathode rays and radioactivity reveal about the atom?
i don't have a time to answer......
Where does radioactivity start in an atom?
radioactivity start from the nucleus of an atom which becomes unstable n emit radiation
What did radioactivity reveal about the structure of atoms?
It showed that atoms were divisible, there were subatomic particles within the atom. Atoms could change form and emit an enormous amount of energy.
What is it called when an atom decays and become another element?
Radioactivity
How is radioactivity formed?
Radioactivity occurs when some of the binding energy in an atom becomes converted into kinetic energy, resulting in the expulsion of some of the particles of the atom. And generally some energy as well.
Spontaneous emission of radiation from an atom?
This physical phenomenon is called radioactivity.
What is the stability of an atom determined?
Radioactivity is identified with radiation detection instruments.
Who named the process by which materials give off energy of an uranium atom radioactivity?
Henri Becquerel discovered in 1896 the natural radioactivity of uranium.The word radioactivity was coined by Marie Curie after.
Who showed that radioactivity is caused by the breakdown of one atom into another?
Ernest Rutherford
What does the electron configuration of an atom reveal?
It can reveal the number of valence electrons in the last shell.
How is radio activity related to the atom?
radioactivity is produced by state changes in the protons & neutrons within the nucleus of the atom and their binding forces.
What does the atomic number of an atom reveal the number of?
it tells you the amount of electrons the atom has orbitting the atom and the nucleus
