Answer:
Energy levels
Explanation:
Elements in one row of the periodic table have the same energy levels. A row on the periodic table is the horizontal arrangement of elements. These rows are called periods.
There are 7 periods on the periodic table.
- Each elements on a period begins with an atom having one valence electrons and then ending with completely filled orbitals.
- Elements in the same period are known to have the same electronic shells which is the energy level.
- The principal quantum number of their electrons is the same.
Answer is 3Mg + N2 —--> Mg3 N2
Answer:
d.
Explanation:
liters is a measure of volume, it is an SI accepted metric system unit
B is the correct answer! I learned this in class last week :)
It will received an H+. I’m not sure if that answers your question correctly
