Boron's symbol is B, it is classified as a metalloid and it is a solid at room temperature. Its atomic number is 5 and its atomic weight is 10.81.Continue Reading
Boron was discovered in 1808 by Sir Humphry Davy, Joseph L. Gay-Lussac and Louis J. Thenard. It has a melting point of 3,769 degrees Fahrenheit, and it boils at 7,101 degrees Fahrenheit. Boron is a rare element on Earth, and it is only found in compounds. It has five protons and five electrons.
As of 2015, the largest boron mine in the world is located in California. Boron is used in making glass and ceramics, and in insecticides, detergents and some cosmetics.Learn more about Atoms & Molecules
Five nonmetals are solids at room temperature: iodine, carbon, phosphorous, sulfur and selenium. One nonmetal, bromine, is a liquid. The other 11 nonmetals exits as gases at room temperature.Full Answer >
Mercury is a naturally occurring metal that is liquid at room temperature. This heavy metal is toxic to humans. It is silver in color, and its high surface tension causes it to form into round drops on surfaces. Mercury is more volatile than any other metal and forms a colorless, odorless gas.Full Answer >
Zinc is classified as a metal element and is a solid at room temperature. It has a melting point of 787 degrees Fahrenheit, a boiling point of 1,665 F and an atomic weight of 65.38. The element zinc is assigned the number 30 on the periodic table of elements, assigned to group number 12 and does not have a group name.Full Answer >
At room temperature, calcium is found in a solid state. It appears as a silvery white compound that tarnishes easily in contact with air. Calcium melts at a temperature of 1,547.6 F and boils at 2,703.2 F.Full Answer >