The lewis dot notation for two atoms is shown. mg is written with two dots on its right. o is written on the right of mg. there are six dots around o. two arrows point from the dots near mg to o. what is represented by this notation?

mg gains two protons from o.

mg donates two protons to o.

mg gains two electrons from o.

mg donates two electrons to o.

Mg donates two electrons to O.

Explanation:

In Lewis dot notation Mg is written with two dots on its right.

O is written on the right of Mg.

There are six dots around oxygen.

Two arrows points from the dots near Mg to O.

This notation shows that two electron of magnesium is donates to oxygen.

Magnesium is present in group two. it has two valance electrons.

Oxygen is present in group 16. It require to electron to complete the octet.

Magnesium atom loses its two electrons which is accepted by oxygen.

Magnesium is form cation Mg²⁺ and oxygen form anion O²⁻

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.