PA+_102 →__P203
balance...
Answers: 1
Chemistry, 22.06.2019 00:00, lilyclairehutson
Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
Answers: 1
Chemistry, 22.06.2019 12:50, khorasanpublic
The number at the end of an isotope’s name is the number.
Answers: 1
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