Electrons, Bonding, and Atomic Orbitals

Atomic Orbital

An atomic orbital is a region around the nucleus which can hold up to two electrons

s Orbitals

A spherical shape orbital

p Orbitals

An hourglass shaped orbital and are found from principal quantum level 2 upwards

d Orbitals

d orbitals are available from principal quantum level 3 upwards

S orbital

2 electrons

p orbital

6 electrons

d orbital

10 electrons

f orbital

14 electrons

Why does the 4s orbital fill before the 3d orbital?

4s orbital has a lower energy than 3d before it is filled

electron configuration arrangement

1s

Define S Block

An element in which the highest energy electrons are in the s sub shell