![Mass Mass](https://thumb7.shutterstock.com/display_pic_with_logo/1185467/152409875/stock-vector-illustration-of-the-element-arsenic-152409875.jpg)
Atomic Mass of Arsenic. Atomic mass of Arsenic is 74.9216 u. The atomic mass is the mass of an atom. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain specific isotope of an element. Atomic Mass: 74.9216 atomic mass units: Number of Protons: 33: Number of Neutrons: 42: Number of Electrons: 33: Melting Point: 817.0° C: Boiling Point. An alchemist, heated a compound containing arsenic. Discovered by: Albert the Great aka Albertus Magnus: Common Compounds: Arsenic acid (H 3 A 5 O 4) Arsenous acid (As(OH) 3) Arsenic.
Isotope | Atomic mass (Da) | Isotopic abundance (amount fraction) |
---|---|---|
75As | 74.921 595(6) | 1 |
Arsenic Atomic Mass Number
Microsoft visio mac os x. Arsenic is a monoisotopic element and its atomic weight is determined solely by its isotope 75As. The Commission last revised the standard atomic weight of arsenic in 2013 based on the latest Atomic Mass Evaluation by IUPAP.
© IUPAC 2003
CIAAW
![Atomic mass vs atomic number Atomic mass vs atomic number](/uploads/1/1/8/0/118023107/242731819.jpg)
Arsenic Periodic Table Atomic Mass
Arsenic
Ar(As) = 74.921 595(6) since 2013
The name derives from the Latin arsenicium and the Greek arsenikos for 'masculine' or 'male' becausethe ancients thought that metals were different sexes. Arsenic was known in prehistoric times for its poisonoussulfides. The German scientist and philosopher, Albert von Bollstadt (Albert the Great or Albertus Magnus) is thought to have obtained the metal around 1250.
Ar(As) = 74.921 595(6) since 2013
The name derives from the Latin arsenicium and the Greek arsenikos for 'masculine' or 'male' becausethe ancients thought that metals were different sexes. Arsenic was known in prehistoric times for its poisonoussulfides. The German scientist and philosopher, Albert von Bollstadt (Albert the Great or Albertus Magnus) is thought to have obtained the metal around 1250.