Америци (Am)

Properties

Abundance
CAS Number	7440-35-9
PubChem CID	na
Atomic Radius	173
Atomic Volume	17.78
Atomic Weight	[243]
Block	f
Boiling Point	2,607
Bulk Modulus
Category	Actinides
Crystal Structure	Simple Hexagonal
Color	Silver
Covalent Radius	180
Density	13.69
Electrical Resistivity
Electron Configuration	[Rn] 5f⁷ 7s²
Electrons per shell	2, 8, 18, 32, 25, 8, 2
Electronegativity	1.3
Electrons	95
Group	na
Heat of Fusion	na
Heat of Vaporization	na
Ionization Potential	5.974
Magnetic Ordering
Magnetic Susceptibility
Mass	[243]
Mass Number	95
Melting Point	1,176
Name	Америци
Neutrons	148
Atomic Number	243
Oxidation States	2, 3, 4, 5, 6
Period	7
Phase	Solid
Poisson Ratio
Protons	95
Shear Modulus
Specific Heat Capacity	-
Symbol	Am
Thermal Conductivity	0.1
Van der Waals radius
Young's Modulus
Abundance in Earth's crust	na
Abundance in Universe	na

Am Америци 95 (243) 7 f 95 994.0 2607.0 [Rn] 5f7 7s2 2 8 18 32 25 8 2 13.7 None Silver Hexagonal 1.3 {"1":"578"} 578 +3,4,5,6 1.84 20.8 10.0 1 7388 y 1.065×10⁴y AlphaEmission Solid, Actinide, Radioactive, Synthetic am-er-ISH-i-em Silvery-white, artificially produced radioactive metal. Americium-241 is currently used in smoke detectors. Produced by bombarding plutonium with neutrons. PB38NyjmneE Americium

Gold has been known since prehistoric times and was the first metal used by humans.

Gold artifacts dated to 5000 years ago have been found in Egyptian tombs.

Gold of 98% purity has been found in Nahal Qunah in the ancient kingdom of Israel, dating from about 6000 years ago. From the Latin word aurum meaning gold 95 1944 Glenn Seaborg, Ralph James., L. Morgan, Albert Ghiorso USA From the English word "America"

Isotopes of Gold

Standard Atomic Weight

Stable Isotopes

Unstable Isotopes

²³¹Am ²³²Am ²³³Am ²³⁴Am ²³⁵Am ²³⁶Am ²³⁷Am ²³⁸Am ²³⁹Am ²⁴⁰Am ²⁴¹Am ²⁴²Am ²⁴³Am ²⁴⁴Am ²⁴⁵Am ²⁴⁶Am ²⁴⁷Am ²⁴⁸Am ²⁴⁹Am

Gold is considered to be non-toxic

India is the world's largest single consumer of gold

Gold is used in coinage and is a standard for monetary systems in many countries.

It is also extensively used for jewelry, decoration, dental work, and for plating.

Gold is used widely in microelectronic circuits to ensure reliable, corrosion-resistant and static-free performance.

Gold leaf, flake or dust is used in some gourmet foods as decorative ingredient.

Америци on ChemicalAid