Mg+2N=??
complete and balance it

3Mg + N2 —> Mg3N2

Explanation:

The reaction between Mg and N2 is given below:

Mg + N2 —> Mg3N2

Now let us balance the equation:

There are 3 atoms of Mg on the right side and 1atom on the left side. It can be balance by putting 3 in front of Mg as shown below:

3Mg + N2 —> Mg3N2

Now the equation is balanced

lol for the pointsss

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.