1.2 equivalents
1.2 equivalents
One formula unit of MgBr2 has three ions; one Mg2+ ion and two Br- ions. One mole of MgBr2 formula units has one mole of Mg2+ ions and two moles of Br- ions, for a total of three moles of ions.
There are 10 electrons in an Mg2+ ion.
Mg2+ + 2 Cl- are in 1 : 2 ratio (of ions) so also 0.25 : 0.50 mole ratio
It has 12 neutrons.
there are 10 electrons.
Mg2+: [1s22s22p6]
45
its mg2+
Magnesium, ion (Mg2+)
Magnesium's atomic number is 12. Thus, neutral magnesium would have 12 electrons. Mg2+ therefore has 2 less electrons, or 10.
Mg2+ and Ca2+ (and many more!)