Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.

Is oxygen an element or compound?

Oxygen is a chemical element with symbol O and atomic number 8. Classified as a nonmetal, Oxygen is a gas at room temperature.

Is oxygen not an element?

Oxygen is a non-metal element and is found naturally as a molecule. Each molecule is made up of two oxygen atoms that are strongly joined together.

Is oxygen 02 an element?

O is a free oxygen atom and O2 is two oxygen atoms chemically bound to form an oxygen molecule. There is no common analogy for C, but N2 is called nitrogen, H2 is hydrogen and Cl2 is chlorine, each having the same name as that of their constituent elements.

What type of element is oxygen?

oxygen (O), nonmetallic chemical element of Group 16 (VIa, or the oxygen group) of the periodic table.

Oxygen - Periodic Table of Videos

29 related questions found

Why is oxygen considered an element?

Oxygen is considered an element because it cannot be broken down any farther. Elements are pure substances that form a single atom. Elements are the simplest building blocks you can break matter down into using purely chemical methods. Oxygen can be found on the periodic table with the atomic number eight.

Is oxygen a metal?

Oxygen, carbon, sulfur and chlorine are examples of non-metal elements. Non-metals have properties in common.

Is Salt an element?

Chemically, table salt consists of two elements, sodium (Na) and chloride (Cl). Neither element occurs separately and free in nature, but are found bound together as the compound sodium chloride.

What is oxygen chemistry?

Oxygen is a chemical element with an atomic number of 8 (it has eight protons in its nucleus). Oxygen forms a chemical compound (O₂) of two atoms which is a colorless gas at normal temperatures and pressures. ... About 21% of Earth's atmosphere is oxygen.

What group is oxygen in on the periodic table?

Group 6A (or VIA) of the periodic table are the chalcogens: the nonmetals oxygen (O), sulfur (S), and selenium (Se), the metalloid tellurium (Te), and the metal polonium (Po).

What elements does oxygen bond with?

Oxygen reacts with silicon and carbon to form silicon dioxide and carbon dioxide. Carbon is also able to react with oxygen to form carbon monoxide which is slightly acidic.
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General Chemistry of Oxygen

• Oxides: O^-2 ,
• peroxides: O₂^-2 ,
• super oxide: O₂^-1.

What kind of element is air?

Air was considered a “pure” element, but in fact the air that's all around us is made up of a variety of gases: primarily nitrogen and oxygen, with almost 1% argon and even smaller amounts of carbon dioxide and other elements such as krypton and helium. The composition of air is just right for life on Earth, though.

Which element is most reactive with oxygen?

Reactivity of Group 1 and 2 elements increases as you go down the periodic table. So sodium is more reactive than lithium. Sodium will react with oxygen forming Na2O (sodium oxide). Lithium forms lithium oxide (Li2O).

Is a water an element?

Answer. Water is a compound. It contains more than one element: hydrogen and oxygen atoms are joined together; as illustrated in the video clip Elements and Compounds, above. An important feature of compounds is that they are very different from the elements from which they are made.

Is sand a element?

Sand is compound not mixture or element .

Is glucose a element?

Glucose is both a molecule AND a covalent compound. Glucose is made up of three elements: carbon, hydrogen, and oxygen.

Is oxygen a conductor of electricity?

Oxygen is a colorless, odorless, tasteless gas; it is the first member of Group 16 of the periodic table. ... A poor conductor of heat and electricity, oxygen supports combustion but does not burn.

Can oxygen cause a fire?

Oxygen is not flammable, but it can cause other materials that burn to ignite more easily and to burn far more rapidly. The result is that a fire involving oxygen can appear explosive-like.

Is oxygen a cation or anion?

Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).

Why is oxygen the best element?

Oxygen is an important element that is needed by most life forms on Earth to survive. It is the third most abundant element in the universe and the most abundant element in the human body. Oxygen has 8 electrons and 8 protons. It is located at the top of column 16 in the periodic table.

Why is oxygen an element quizlet?

Why is oxygen an element? It cannot be broken down into a simpler substance through chemical means.

Why oxygen is the most abundant element?

For August, we selected oxygen, a highly reactive nonmetal with chemical symbol O and atomic number 8. Oxygen tends to fill its two unpaired electron shells by accepting electrons from other atoms via covalent bonding. ... After hydrogen and helium, oxygen is the third most abundant chemical element in the known universe.

Is air a oxygen?

Air is mostly gas

So what is air, exactly? It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

What are the 7 main elements?

The seven element theory included all elements on earth: plants, warm energy, soil, mineral, water, cold energy, and air. This theory introduced each element's material, property, characteristics, function, relationship to each other, and relationship with life and organs.