Question

electronic configuration of Ca (AT. no. =20 ) is ____​

Answer 1

Answer:

The atomic number of calcium is 20. This means that in a neutral calcium atom, there are 20 protons in its nucleus. A neutral calcium atom also has 20 electrons. The electron configuration of a neutral calcium atom is 1s22s22p63s23p64s2

Answer 2

Answer:

electronic configuration =2,8,8,2

Explanation:

k=2

l=8

m=8

n=2

hope it helps

atomic number is equal to the number of protons or electrons

neutrons = mass number -atomic number

protons =electrons