CHM 1025C Name: _____________________

Spectroscopic Notation from Periodic Chart

1

IA

IIA

H

IIIA

IVA

VA

VIA

VIIA

He

2

*

*

Ne

3

IIIB

IVB

VB

VIB

VIIB

VIIIB

IB

IIB

Ar

4

Kr

5

Xe

6

Rn

7

M-3 C1: Spectroscopic Notation using the Periodic Chart 18 Points

Given the Element’s Atomic Number, use the Periodic Chart above to write the Spectroscopic Notation for the following elements.. You may do it the long way showing all blocks of orbitals, or you may use the shorter method applying the square brackets around the Nobel Gas which indicates the complete inner filled electrons in the core (or Kernal).

i.e: [Ar] represents 1s² 2s² 2p⁶ 3s² 3p⁶ or the 18 electrons in the Argon core.

* In columns VIB and IB, you may have to apply the d4/9 Rule (Never 4/9 total d orbital electrons in any spectroscopic notation except Nb 41; W 74; and Pt 78)

1. ¹H __________________________________________

2. ³⁰Zn __________________________________________

3. ³⁵Br __________________________________________

4. ⁷⁴W ___________________________________________

5. ⁸O ___________________________________________

6. ¹⁵P ___________________________________________