Astudent made the lewis dot diagram of a compound as shown.
what is the error in the lewis dot diagram?

Answer : The correct option is, (2) Both electrons of Mg should be transferred to one O because the formula is MgO.

Explanation :

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

Ionic compound are usually formed when a metal reacts with a non-metal.

Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.

The covalent compound are usually formed when two non-metals react.

As we know that the magnesium is an alkali metal and has 2 valence electron and oxygen is a non-metal and has 6 valence electrons.

As we know that magnesium atom can donates 2 electrons to a oxygen atom to complete an octet then it forms an ionic compound that is magnesium oxide (MgO).

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is,

Therefore, the total number of valence electrons in = 2 + 6 = 8

According to Lewis-dot structure, there are 2 number of bonding electrons and 6 number of non-bonding electrons.

Hence, the correct option is, (2) Both electrons of Mg should be transferred to one O because the formula is MgO.

just did the assignment and the answer was #1 +2 n