Question

lithium 2s orbital vs sodium2p orbital which has more energy?

Answer 1

energy is calculated by using a formula

this is know as (n+l)

for lithium

n = 2

l = 0

n+l = 2+0 = 2

for sodium

n = 2

l = 1

n +l = 2+1 = 3

sodium has more energy than lithium