According to Dalton's atomic theory chemical reactions occur when atoms are separated, joined, or rearranged. Atoms of one element, however, are never changed into atoms of another element as a result of a chemical reaction (it is possible only during nuclear reactions and radioactive disintegration).
Yes, it is possible during nuclear reactions and radioactive disintegration.
Transmutation
Nuclear transmutation
1 atomgram of a chemical element has 6,02214129(27)×1023 atoms. 1 atomgram=atomic weight of a chemical element exprimed in grams.
I suppose that you think to a chemical element (possible having natural isotopes).
Yes, different isotopes of the same element have different masses.
the size
Type your answer here...they all be equal to that element's atomic mass in grams.
The Dalton theory is not applicable to nuclear reactions.
According to Dalton's atomic theory chemical reactions occur when atoms are separated, joined, or rearranged. Atoms of one element, however, are never changed into atoms of another element as a result of a chemical reaction (it is possible only during nuclear reactions and radioactive disintegration).
In a nuclear decay sequence it is possible for heavier atoms to decay to a lighter element.
Chemistry
Yes
These atoms are known as valence atoms.
They would have to be atoms of the same element, and the same isotope of that element.
During chemical reactions atoms remain unchanged.
By number of protons/electrons.
Atoms of the same element may differ from one another by having differing numbers of Neutrons in their centres.
The likely word is animosity (ill feeling, hostility).Another possible word is atomicity, used to mean valence of an element's atoms.
Lead and gold are elements, made up of completely lead and gold atoms, respectively. Elemental atoms cannot be created or changed. They can only combine to form molecules. An element can never become another element.