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 | ||
Potassium | 39 |
Identify the chemical symbol of Potassium:
The chemical symbol of Potassium is K.
The atomic number of Potassium is 19.
Identify the number of electrons and protons:
Atomic number = number of electrons = number of protons
Thus,
Number of electrons = 19
Number of protons = 19
Write the electronic configuration for Potassium:
1. The number of electrons in Potassium is 19.
2. The first K shell occupies 2 electrons, 8 electrons in the L shell, 8 in the M shell, and 1 electron in the L shell.
3. Thus, the electronic configuration of Potassium is K=2, L=8, M=8, and L=1.
Name of the element | Symbol of the element | Atomic number | Mass number | No. of protons | No. of electrons | No. of neutrons | Electronic configuration | |||
Potassium | K | 19 | 39 | 19 | 19 | 20 | K = 2 | L = 8 | M = 8 | L = 1 |