mwilliams457
20.08.2019 •
Chemistry
An atom of carbon-12 and an atom of carbon-14 differ in(1) atomic number(2) mass number(3) nuclear charge(4) number of electrons
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Ответ:
The correct answer is option (2).
Explanation:
Carbon-12:
Atomic Number = 6
Mass number = 12
Nuclear charge = number of protons = +6
Number of electrons = 6
Carbon-14:
Atomic Number = 6
Mass number = 14
Nuclear charge = number of protons = +6
Number of electrons = 6
An atom of carbon-12 and an atom of carbon-14 only differ in their mass number as C-12 has mass number of 12 and C-14 has mass number of 14.
Ответ:
Answer
A physical change could happen without changing any of the characteristics, here a example lets say if you have a ice cube that is frozen H2O and you let it sit it will melt only changing the physical appearance and the molecules in the substance. A physical change don't change the physical composition.
Explanation:
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