Chemistry, 20.02.2020 23:00 jannadwhite2435
Identify the missing information for each atom or ion. Note that the atoms and ions are not necessarily neutral.
A Se ion has a mass number of 78 and a charge of −2 . Determine the number of neutrons, protons, and electrons in this ion.
number of neutrons:
number of protons:
number of electrons:
Answers: 2
Chemistry, 22.06.2019 10:10
Stage in which a star’s outer layers have started to cool and grow outward?
Answers: 3
Identify the missing information for each atom or ion. Note that the atoms and ions are not necessar...
Mathematics, 11.08.2019 02:10
Mathematics, 11.08.2019 03:10
Mathematics, 11.08.2019 03:10
Mathematics, 11.08.2019 03:10
Mathematics, 11.08.2019 03:10
Mathematics, 11.08.2019 03:10
Mathematics, 11.08.2019 03:10
Mathematics, 11.08.2019 03:10
Mathematics, 11.08.2019 03:10
Mathematics, 11.08.2019 03:10
Mathematics, 11.08.2019 03:10