Complete the chart:
Name of the element | Symbol of the element | Atomic number | Mass number | No. of protons | No. of electrons | No. of neutrons | Electronic configuration | ||
Magnesium | 12 | 12 | 12 | K | L | M |
Identify the symbol of Magnesium:
The chemical symbol of Magnesium is .
Calculate the number of electrons in Magnesium:
In a neutral atom,
Number of electronsAtomic number
Thus,
Number of electrons
Calculate themass number of Magnesium:
Mass numberNumber of protonsNumber of neutrons
Thus,
Mass number
Write the electronic configuration for Sodium:
Thus, the chart is as follows:
Name of the element | Symbol of the element | Atomic number | Mass number | No. of protons | No. of electrons | No. of neutrons | Electronic configuration | ||
Magnesium | 12 | 24 | 12 | 12 | 12 |