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Why is oxygen a nonmetal?

Why is oxygen a nonmetal?

Oxygen is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element. Free oxygen is too chemically reactive to appear on Earth without the photosynthetic action of living organisms, which use the energy of sunlight to produce elemental oxygen from water.

Is oxygen a solid nonmetal?

Nonmetals share many similar properties including: They are either gas (hydrogen, oxygen, nitrogen) or solid (carbon, sulfur) under standard conditions. They are not good conductors of electricity or heat. They are very brittle in their solid form.

What is the formula of oxygen?

Model of molecular or diatomic oxygen, composed of two oxygen atoms bonded together. Molecular oxygen (O2) is a diatomic molecule that is composed of two oxygen atoms held together by a covalent bond….Properties.

Chemical formula O2
Molar mass 32.00 g/mol
Boiling Point -183oC
Melting Point −219°C

Is PA a metal or nonmetal?

Protactinium (formerly protoactinium) is a chemical element with the symbol Pa and atomic number 91. It is a dense, silvery-gray actinide metal which readily reacts with oxygen, water vapor and inorganic acids.

What is the color of oxygen?

The gas is colorless, odorless, and tasteless. The liquid and solid forms are a pale blue color and are strongly paramagnetic.

What is the symbol of oxygen?


What is color of oxygen?

Typical assignments

hydrogen (H) white
carbon (C) black
nitrogen (N) blue
oxygen (O) red
fluorine (F), chlorine (Cl) green

What are the 17 nonmetals?

The 17 nonmetal elements are: hydrogen, helium, carbon, nitrogen, oxygen, fluorine, neon, phosphorus, sulfur, chlorine, argon, selenium, bromine, krypton, iodine, xenon, and radon.

Is oxygen a metal or non metal?

Oxygen (denoted “O”, element no. 8) on the other hand, is a non-metallic element. Metals and non-metal atoms differ in the kinds of bonds they can make with other atoms.

Is oxygen a metal, metalloids, or non-metal?

Oxygen is not a metal . The periodic table is separated into three parts: metals, semi-metals (which are also known as mateliods) and non-metals. Oxygen classifies as a non metal. It is a gas at room temperature, cannot conduct electricity and has a boiling point of -182.96ºC and a melting point of -218.79ºC.

Which elements are nonmetal?

The nonmetal element group is a subset of these elements. The nonmetal element group consists of hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur and selenium.

Is SO2 a nonmetal?

SO2, sulfur dioxide compound is composed of sulfur and oxygen, both are non metals. Hence the compound is non metallic in nature. It usually exists as sulfur dioxide gas.