<span>Answer: A) They are isotopes of nitrogen and they contain the same number of protons and electrons but each contains a different number of neutrons - 7 and 8 respectively.
Isotopes are atoms of a chemical element whose nucleus has the same atomic number, Z, but different atomic mass, A. The atomic number corresponds to the number of protons in the atom, therefore the isotopes of an element contain the same number of protons and electrons (atoms have to be neutral particles). The difference in atomic masses arises from the difference in the number of neutrons in the atomic nucleus.
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The statement is an opinion because it expresses a preference of an individual than an actual fact.
The last equation gives you the tension in the string on the right:
Answer:
The answer is "
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Explanation:
please find the complete question in the attached file.
Given value:
calculating the radiation absorbed per kg:
