Question

What is the atomic number and symbol of the element that has the electronic configuration, 2, 8, 1?

Answer 1

Answer:

Potassium with atomic number 19 has the electronic configuration (2,8,8,1).

Answer 2

2_ atomic no 2

electronic configaration 1s2

element helium

symbol He

8_atomic no 8

electronic configararation 1s2 2s2 2p4

element oxygen

symbol O

1_atomic no 1

electronic configuration 1s1

element hydrogen

symbol H