Magnesium lose two electrons to form MgF2.
The charge on a magnesium ion with 10 electrons (Mg2+) is +2.
Fluorine is a halogen. All halogens have 7 valence electrons. There are thus 7 valence electrons for Fluorine, 2 in the 2s orbital, and 5 in the 2p orbitals.
Fluorine has the atomic number of 9. This means it has 9 protons in the nuclei of its atoms. So, a neutral fluorine atom would also have 9 electrons.
Magnesium has 12 protons, so if there are only 10 electrons, then it will have a +2 charge.
If fluorine combines with an element such that their electronegativity difference is more than 1.7, then they will form an ionic compound. Example:- Hydrogen fluoride is an ionic compound. Hydrogen has electronegativity of 2.1 and fluorine has 4.0. So, the difference is 1.9. Therefore, it is an ionic compound.
Metals such as sodium, potassium, calcium, and magnesium are most likely to form ionic compounds when combined with fluorine due to their tendency to donate electrons to fluorine to achieve a stable electron configuration.
Silicon. Magnesium and sodium are metals and readily lose electrons to form cations, Mg2+ and Na+. Fluorine readily gains an electron to form the anion F-. Silicon on the otherhand in group 14 would need to gain 4 or lose 4 electrons to achieve the octet.
The charge on a magnesium ion with 10 electrons (Mg2+) is +2.
negative
Fluorine is a halogen. All halogens have 7 valence electrons. There are thus 7 valence electrons for Fluorine, 2 in the 2s orbital, and 5 in the 2p orbitals.
Fluorine has the atomic number of 9. This means it has 9 protons in the nuclei of its atoms. So, a neutral fluorine atom would also have 9 electrons.
Magnesium has 12 protons, so if there are only 10 electrons, then it will have a +2 charge.
1
It'll have to lose two to have a stable octet.
If two electrons are removed from a magnesium atom, it would result in a +2 charge. Magnesium has 12 protons in its nucleus, so removing two electrons would leave it with 10 electrons, giving it a +2 charge as it now has more protons than electrons.
Let's see.Mg + 2HCl -> MgCl2 + H2Looks like magnesium chloride. And a little hydrogen gas.
Fluorine is the element with atomic weight closest to 19 amu. Fluorine has an atomic number of 9, so an electrically neutral fluorine atom would have 9 electrons.