In lesson 20, a magnesium strip was used to ignite the thermite reaction. when magnesium is placed in a flame from a small blow torch, it burns quite brightly forming magnesium oxide, a salt that contains one magnesium for every oxygen. in the following questions you will be asked to provide some details of the chemical processes involved in a reaction between magnesium and oxygen. how many more electrons does unbound oxygen need to fill its 2nd shell?

2 electrons will be needed by unbound oxygen in order to fill its 2nd shell.

Explanation:

The chemical reaction between magnesium and oxygen gives magnesium oxide as a product.The reaction is chemically represented as:

Magnesium is a metal of group-2 with 2 valence electrons.It has atomic number of 12.

In order to attain noble gas configuration it will loose two electrons.

...[1]

Oxygen is a non metal of group-16 with 6 valence electrons..It has atomic number of 8.

In order to attain noble gas configuration it will gain two electrons.

..[2]

2 electrons will be needed by unbound oxygen in order to fill its 2nd shell.

and 1and 1