Write a balanced equation for the combination of magnesium and oxygen to form magnesium oxide, mgo. phase symbols are not graded.

Mg + O2 ➡️ MgO — we need to have the same emount of each element on both sides. On the left we have 1 Mg and on the right 1 Mg, so thats fine, but 2 O on the left and 1 O on the right, so we place a coefficient of 2 in front of the compound which is “lacking” O.

Mg + O2 ➡️ 2MgO

Now the O is okay, but we have 1 Mg and 2 Mg, so we need to put a 2 in front of the Mg thats “lacking”.

2M + O2 ➡️ 2MgO

Now it is balanced :)

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

Man i dont know this answer