2. Atoms & Elements
Ions
15PRACTICE PROBLEM
Identify the number of protons in an ion with a -2 charge and 82 electrons.
Identify the number of electrons in a Fe3+ ion.
Identify the number of protons in an ion with a -2 charge and 82 electrons.
Identify the number of electrons in a Fe3+ ion.
ANSWERS OPTIONS
A
80 protons, 23 electrons
B
80 protons, 26 electrons
C
82 protons, 27 electrons
D
84 protons, 264 electrons