The difference between oxygen (O) and oxygen (O2 )is that the former is an oxygen atom while the latter consists of two O atoms bound together, forming a molecule also called oxygen. Oxygen is usually found as a diatomic gas. Therefore, we write it as O2.
When a molecule is formed of different elements, it is called a compound. Examples of molecules are: O2 - a simple molecule comprising two atoms of oxygen.
Is pure oxygen O or O2?
O is a free oxygen atom and O2 is two oxygen atoms chemically bound to form an oxygen molecule.
Is O2 a molecule or element?
The oxygen molecule O2 is considered a molecule but not a compound. This is because O2 is made of two atoms
Is O2 an element yes or no?
"Oxygen gas" is not an element. It is a compound (more specifically, it is a molecule or collection of molecules). "Oxygen" by itself can refer to the element oxygen, the oxygen atom, or the oxygen molecule O2.
Why is O2 an element?
O2 represents a molecule of oxygen which is made up of two atoms of oxygen ;compounds are composed of different types of elements for example HO. Thus,O is an element.
Why is O2 not an element?
O2 is a molecule made up of 2 oxygen atoms. It is technically still one element, but it's not considered an atom because it is 2 atoms stuck together.
What is the meaning of oxygen O2?
What Does Oxygen (O2) Mean? Oxygen (O2) is a gas, an essential component of air, and a necessary element for the sustenance of all living things. It is colorless, odorless, and tasteless and makes up 21% of the Earth's atmosphere.
What is normal SpO2 percentage?
A normal level of oxygen is usually 95% or higher. Some people with chronic lung disease or sleep apnea can have normal levels around 90%. The “SpO2” reading on a pulse oximeter shows the percentage of oxygen in someone's blood. If your home SpO2 reading is lower than 95%, call your health care provider.Feb 3, 2021
What is a good Sp02 reading?
Oxygen saturation levels (SpO2) between 95 to 100 percent are considered normal for both adults and children (below 95% is considered abnormal). People over 70 years of age may have oxygen levels closer to 95%.