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Germanium
The element with chemical properties most like silicon is germanium. As an example, both are used in semiconductors.
Ge Germanium
The most common isotope of Germanium has 40 neutrons.
Germanium is most commonly combined with silicon, oxygen and hydrogen
Germanium
The six commonly recognized metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium.
Semi-metals or metalloids. The elements boron, silicon, germanium, arsenic, antimony, tellurium, and astatine have properties similar to both metals and non-metals. These elements are located along the semi-metal line of the periodic table.
The element with chemical properties most like silicon is germanium. As an example, both are used in semiconductors.
The two elements that have the most similar chemical properties to arsenic are Phosphorus (P) and Antimony (Sb).
One element of carbon family as Silicon or Germanium and one element from Boron family as gallium or Indium or one element from Nitrogen family as Arsenic.
Ge Germanium
Ge Germanium
Arsenic, As, is not found in group 1, the Alkali metals, but is found in the nitrogen group. It is the 33rd element, between Germanium and Selenium. It is also a metalloid, which means it possess charateristics of both metals and nonmetals. It's most stable isotopes are As-73, As-74 and As-75. In te late centuries, Arsenic was used in medicine as arsphenamine and arsenic trioxide. It was also used as a chemical weapon after WW1, in te Cold war I believe.
arsenic associates with phosphorus
The most likely reason for arsenic poisoning today is from ground water that naturally contains high concentrations of arsenic. Chronic exposure to arsenic is related to vitamin A deficiency which is related to heart disease and night blindness.
Arsenic.