Theyre temporary magnets, so they can be turned on and off.
Mn+2 is cation and CO3 is anion
hope it help
It's 1 because there is only one electron on the outer shell.
Answer:
D number of protons or atomic mass
<span>With the addition of an electron causing a negative charge, an ion is larger than normal but with loss of an atoms electron, the positive ion is smaller.
if the atom loses an electron, the ion is relatively smaller than the atom and it becomes positive.
if the atom gains an electron, the ion is relatively bigger than the atom and it becomes negative.</span>
