- Average Atomic Mass Number Of Arsenic
- Atomic Number Of Arsenic
- Name The Atomic Mass Number Of Arsenic
- Arsenic Symbol
Arsenic is a chemical element with atomic number 33 which means there are 33 protons in its nucleus. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. Our arsenic page has over 190 facts that span 107 different quantities. Each entry has a full citation identifying its source. Areas covered include atomic structure, physical properties, atomic interaction, thermodynamics, identification, atomic size, crystal structure, history, abundances, and nomenclature.
Average Atomic Mass Number Of Arsenic
Arsenic
Atomic Number Of Arsenic
Name | Arsenic |
Symbol | As |
Atomic Number | 33 |
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 | 613.0° C |
Density | 5.72 grams per cubic centimeter |
Normal Phase | Solid |
Family | Metalloids |
Period | 4 |
Cost | Unavailable |
Origin of Name | From the Greek word 'arsenikos' and the Latin word 'arsenicum,' meaning yellow orpiment |
Date and Place of Discovery | It's been used since ancient times, but the first recorded use was in 1250 when Albert the Great, an alchemist, heated a compound containing arsenic. |
Discovered by | Albert the Great aka Albertus Magnus |
Common Compounds | - Arsenic acid (H3A5O4)
- Arsenous acid (As(OH)3)
- Arsenic trisulfide (As2S3), a yellow mineral used as a pigment.
|
Interesting facts | - It and all its compounds are poisonous.
- It can contaminate ground water which is what occurred in Bangladesh (see articles).
|
Common Uses | - Poisons, such as insecticides
- Electrical conduits
- Semiconductors
- Bronzing
|
Name The Atomic Mass Number Of Arsenic
Photo Courtesy of About.com Chemical Elements Jefferson Lab Web Elements Wikipedia |
Arsenic Symbol
Arsenic Atomic Structure | Elements by Name | Elements by Number | Home |