THE EXCITED STATE
Skill- TO RECOGNISE THE EXCITED STATE YOU MUST:
 Count the electrons on the given configuration of the neutral element,
this equals the atomic number.
 Identify the element from the atomic number.
 Compare the periodic table configuration to the configuration given; if
there are skipped or empty orbitals or sublevels but the number of
electrons is the same, it is an excited state.
 To propose your own excited state, simply promote an electron to a
higher energy level that would be unoccupied in the ground state.
EXAMPLE #1 ASSESS THE CONFIGRATIONS:
1s1↑
2s2 ↑↓ 2p6 ↑↓ ↑↓ ↑↓ 3s1↑
NOTE :there are 10
electrons, atomic number
is 10 therefore it is neon
EXCITED.
1-8-1 NOT GROUND.
1s ↑↓ 2s ↑↓ 2p ↑↓ ↑↓ ↑↓
2
2
6
NOTE :there are 10
electrons, atomic number is
10 therefore it is neon
GROUND, AS IN
PERIODIC TABLE
2-8 (10 ELECTRONS)