Pd - Palladium

There is none of the precious metal palladium in our lab. Discovered by Wollaston in 1803 in London.

Atomic number - 46 Density g/mL 12

Atomic weight u 106 .4 Melting point K 1825

Bonding radius A 1 .28 Boiling point K 3237

Atomic radius A 1 .79 Heat of vaporization kJ/mol 357

Ionization Potential V 8 .34 Heat of fusion kJ/mol 17 .6

Electronegativity - 2 .2 Specific heat J/gK 0 .24

The oxide is mildly basic.
Crystal are face centered cubic.

Electron config. : [Kr] 4d¹⁰

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

H He

Li Be B C N O F Ne

Na Mg Al Si P S Cl Ar

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

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

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

Fr Ra Ac** Rf Db Sg Bh Hs Mt 110 111 112 113

Lanthanides* Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Actinides ** Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

Isotopes of Pd: Click mass number for decay process, product for element page.

093
60 sec
EC,9.500 MeV
Rh-93
92.935909 094
9.0 sec
EC,6.600 MeV
Rh-94
93.928824 095
13.3 sec
EC/ECp,10.200
Rh-95/Ru-94
94.926784 096
122 sec
EC,3.450 MeV
Rh-96
95.918228 097
3.10 min
EC,4.800 MeV
Rh-97
96.916478 098
17.7 min
EC,1.873 MeV
Rh-98
97.912726 099
21.4 min
EC,3.365 MeV
Rh-99
98.911809

100
3.63 da
EC,3.630 MeV
Rh-100
99.908505 101
8.47 hr
EC,1.980 MeV
Rh-101
100.90828 102 1.02%

Stable

101.90560 103
16.991 da
EC,2.660 MeV
Rh-103
102.90608 104 11.14%

Stable

103.90403 105 22.33%

Stable

104.90508 106 27.33%

Stable

105.90348

107
6.5E+6 yr
B-,1.511 MeV
Ag-107
106.90512 108 26.46%

Stable

107.90389 109
13.7012 hr
B-,1.116 MeV
Ag-109
108.90595 110 11.72%

Stable

109.90515 111
23.4 min
B-,2.190 MeV
Ag-111
110.90764 112
21.03 hr
B-,6.800 MeV
Ag-112
111.90731 113
93 sec
B-,3.340 MeV
Ag-113
112.91015

114
2.42 min
B-,1.451 MeV
Ag-114
113.91036 115
25 sec
B-,4.580 MeV
Ag-115
114.91368 116
11.8 sec
B-,2.610 MeV
Ag-116
115.91415 117
4.3 sec
B-,5.700 MeV
Ag-117
116.91787 118
1.9 sec
B-,4.100 MeV
Ag-118
117.91890 119
0.92 sec
B-,6.500 MeV
Ag-119
118.92270 120
0.5 sec
B-,5.000 MeV
Ag-120
119.92399

MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass

Updated by clh on 2/6/98. This is not a publication of Phoenix College.

Atomic number	-	46		Density	g/mL	12
Atomic weight	u	106	.4	Melting point	K	1825
Bonding radius	A	1	.28	Boiling point	K	3237
Atomic radius	A	1	.79	Heat of vaporization	kJ/mol	357
Ionization Potential	V	8	.34	Heat of fusion	kJ/mol	17	.6
Electronegativity	-	2	.2	Specific heat	J/gK	0	.24
The oxide is mildly basic.				Crystal are face centered cubic.
Electron config. : [Kr] 4d¹⁰
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093 60 sec EC,9.500 MeV Rh-93 92.935909	094 9.0 sec EC,6.600 MeV Rh-94 93.928824	095 13.3 sec EC/ECp,10.200 Rh-95/Ru-94 94.926784	096 122 sec EC,3.450 MeV Rh-96 95.918228	097 3.10 min EC,4.800 MeV Rh-97 96.916478	098 17.7 min EC,1.873 MeV Rh-98 97.912726	099 21.4 min EC,3.365 MeV Rh-99 98.911809
100 3.63 da EC,3.630 MeV Rh-100 99.908505	101 8.47 hr EC,1.980 MeV Rh-101 100.90828	102 1.02% Stable 101.90560	103 16.991 da EC,2.660 MeV Rh-103 102.90608	104 11.14% Stable 103.90403	105 22.33% Stable 104.90508	106 27.33% Stable 105.90348
107 6.5E+6 yr B-,1.511 MeV Ag-107 106.90512	108 26.46% Stable 107.90389	109 13.7012 hr B-,1.116 MeV Ag-109 108.90595	110 11.72% Stable 109.90515	111 23.4 min B-,2.190 MeV Ag-111 110.90764	112 21.03 hr B-,6.800 MeV Ag-112 111.90731	113 93 sec B-,3.340 MeV Ag-113 112.91015
114 2.42 min B-,1.451 MeV Ag-114 113.91036	115 25 sec B-,4.580 MeV Ag-115 114.91368	116 11.8 sec B-,2.610 MeV Ag-116 115.91415	117 4.3 sec B-,5.700 MeV Ag-117 116.91787	118 1.9 sec B-,4.100 MeV Ag-118 117.91890	119 0.92 sec B-,6.500 MeV Ag-119 118.92270	120 0.5 sec B-,5.000 MeV Ag-120 119.92399
MASS abund. Halflife Particle, Energy Decay Product(s) Isotopic Mass