<span> N-16
</span>7 protons & 9 neutrons
<span>7 + 9 = 16
</span>
<span>J.j thomson a british physicist was the first to identify the electron in 1987</span>
Sodium carbonate contains 3 elements: Na, C, and O. Step 2: Determine how many atoms of each element are in the formula. Na, Co, is made up of Na, C, and O3, so Na.co, has 2 atoms of sodium (Na) 1 atom of carbon (C) and 3 atoms of oxygen (O).
