Ch109_LectureNotes

Electronegativity

Periodic Table of the Elements

IA IIA IIIA IVA VA VIA VIIA VIIIA

H He

2 Li Be B C N O F Ne

3 Na Mg IIIB IVB VB VI VIIB VIIIB IB IIB Al Si P S Cl Ar

4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr

5 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe

6 Cs Ba Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn

Electronegativity increases from left right and from bottom top.

plot of electronegativity versus atomic number

Periodic Table with Electronegativity Trend arrow

periodic table with highest density elements indicated by period

periodic table with highest melting point elements by period

**Periodic Table of the Elements**
	IA	IIA											IIIA	IVA	VA	VIA	VIIA	VIIIA
H																		He
2	Li	Be											B	C	N	O	F	Ne
3	Na	Mg	IIIB	IVB	VB	VI	VIIB	VIIIB			IB	IIB	Al	Si	P	S	Cl	Ar
4	K	Ca	Sc	Ti	V	Cr	Mn	Fe	Co	Ni	Cu	Zn	Ga	Ge	As	Se	Br	Kr
5	Rb	Sr	Y	Zr	Nb	Mo	Tc	Ru	Rh	Pd	Ag	Cd	In	Sn	Sb	Te	I	Xe
6	Cs	Ba	Lu	Hf	Ta	W	Re	Os	Ir	Pt	Au	Hg	Tl	Pb	Bi	Po	At	Rn
	s¹	s²	d¹	d²	d³	d⁴	d⁵	d⁶	d⁷	d⁸	d⁹	d¹⁰	p¹	p²	p³	p⁴	p⁵	p⁶

H: 1s¹
He: 1s²
B: 1s² 2s² 2p¹
P: 1s² 2s² 2p⁶ 3s² 3p³
V: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d³

**Periodic Table of the Elements**
	IA	IIA											IIIA	IVA	VA	VIA	VIIA	VIIIA
H																		He
2	Li	Be											B	C	N	O	F	Ne
3	Na	Mg	IIIB	IVB	VB	VI	VIIB	VIIIB			IB	IIB	Al	Si	P	S	Cl	Ar
4	K	Ca	Sc	Ti	V	Cr	Mn	Fe	Co	Ni	Cu	Zn	Ga	Ge	As	Se	Br	Kr
5	Rb	Sr	Y	Zr	Nb	Mo	Tc	Ru	Rh	Pd	Ag	Cd	In	Sn	Sb	Te	I	Xe
6	Cs	Ba	Lu	Hf	Ta	W	Re	Os	Ir	Pt	Au	Hg	Tl	Pb	Bi	Po	At	Rn
	s¹	s²	d¹	d²	d³	d⁴	d⁵	d⁶	d⁷	d⁸	d⁹	d¹⁰	p¹	p²	p³	p⁴	p⁵	p⁶

P: 1s² 2s² 2p⁶ 3s² 3p³

[Ne] = 1s² 2s² 2p⁶

P = [Ne] 3s² 3p³

V: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d³

[Ar] = 1s² 2s² 2p⁶ 3s² 3p⁶

V = [Ar] 4s² 3d³

© R A Paselk

Last modified 23 March 2011