5 Simple Ways To Identify An Element On The Periodic Table
Atomic number is abbreviated “Z”. If your homework says an element has Z=13, you can look for atomic number 13 on the periodic table and identify it as aluminum (Al). An atom can gain or lose neutrons and still be the same element. For instance, 1122Na{\displaystyle _{11}^{22}Na} is a sodium atom with 11 protons and 22 neutrons. If it gains a neutron, it is still sodium and becomes 1123Na{\displaystyle _{11}^{23}Na} (with 23 neutrons)....