Sagot :
Explanation:
Find the atomic number of the elements with the following quantum number:
1. n=2, l=0, m=0, s=-1/2
1. Beryllium atomic number 4
2. n=4, l=3, m=1, s=-1/2
2. Erbium atomic number 68
Explanation:
Find the atomic number of the elements with the following quantum number:
1. n=2, l=0, m=0, s=-1/2
1. Beryllium atomic number 4
2. n=4, l=3, m=1, s=-1/2
2. Erbium atomic number 68