1. Arsenic

2. Arsenic Arsenic As- Atomic symbol As- Atomic symbol 33- Atomic number 33- Atomic number 75- Atomic mass 75- Atomic mass Group- 15 Group- 15

5. Physical properties White color White color Glossy feel Glossy feel Metalic luster Metalic luster

6. Chemical properties Yellow, Black, and Grey Allotropic forms. Yellow, Black, and Grey Allotropic forms. Brittle crystalline solid. Brittle crystalline solid. It tarnishes rapidly in the air. It tarnishes rapidly in the air.

7. Uses of arsenic. Orpiment as its sulfides, as arsenides and sulfaresenides of heavy metals, as arsenates, and as its oxide. Orpiment as its sulfides, as arsenides and sulfaresenides of heavy metals, as arsenates, and as its oxide.

8. History of arsenic. Arsenic has been found in nature since Antiquity. Arsenic has been found in nature since Antiquity. By the 11 th century three species of arsenic were found red, yellow, and white. By the 11 th century three species of arsenic were found red, yellow, and white.

9. Allotropes and Isotopes. There are 30 different isotopes. Ranging from. As-63 As-92. There are 30 different isotopes. Ranging from. As-63 As-92. They say there are no known allotropes in arsenic up to this day. They say there are no known allotropes in arsenic up to this day.

10. Other interesting facts. In the Victorian era, arsenic was mixed with vinegar and chalk and eaten by women to improve the complexion of their faces, making their skin paler to show they did not work in the fields. In the Victorian era, arsenic was mixed with vinegar and chalk and eaten by women to improve the complexion of their faces, making their skin paler to show they did not work in the fields. Lead Arsenate was used as an insecticide on Fruit crops Its use was stopped in the late 60s and was officially banned in the US in Lead Arsenate was used as an insecticide on Fruit crops Its use was stopped in the late 60s and was officially banned in the US in