Table of Contents
What is oxygen-16 mass number?
ChEBI ID. CHEBI:33818. Definition. The stable isotope of oxygen with relative atomic mass 15.994914.
Is oxygen-16 an element?
oxygen group element, also called chalcogen, any of the six chemical elements making up Group 16 (VIa) of the periodic classification—namely, oxygen (O), sulfur (S), selenium (Se), tellurium (Te), polonium (Po), and livermorium (Lv).
Is oxygen-16 and oxygen 17?
Of its three stable isotopes, oxygen 16 (16O, whose nucleus contains eight neutrons) makes up 99.762 percent of oxygen on Earth, while heavier oxygen 17 (17O, with nine neutrons) accounts for just 0.038 percent, and the heaviest isotope, oxygen 18 (18O, with 10 neutrons), makes up 0.2 percent.
What is the use of oxygen-16?
O-16 is used in the production of radioactive N-13 which is used for PET imaging and myocardial perfusion. O-17 can be used as a tracer in the study of cerebral oxygen utilization.
What is oxygen’S symbol?
OOxygen / Symbol
What is Oxygens symbol on periodic table?
(O)
oxygen (O), nonmetallic chemical element of Group 16 (VIa, or the oxygen group) of the periodic table.
Why is oxygen 16?
Because protons and neutrons are roughly equal in mass, an isotope’s number is equal to the sum of its protons and neutrons. Therefore, oxygen 16 has 8 protons and 8 neutrons, oxygen 17 has 8 protons and 9 neutrons, and oxygen 18 has 8 protons and 10 neutrons.
Why is oxygen 16 an isotope?
Oxygen-16 (16O) is a stable isotope of oxygen, having 8 neutrons and 8 protons in its nucleus. It has a mass of 15.99491461956 u. Oxygen-16 is the most abundant isotope of oxygen and accounts for 99.762% of oxygen’s natural abundance….Oxygen-16.
| General | |
|---|---|
| Protons (Z) | 8 |
| Neutrons (N) | 8 |
| Nuclide data | |
| Natural abundance | 99.76% |
What is oxygen’s group number?
Group 16
Fact box
| Group | 16 | −218.79°C, −361.82°F, 54.36 K |
|---|---|---|
| Period | 2 | −182.962°C, −297.332°F, 90.188 K |
| Block | p | 0.001308 |
| Atomic number | 8 | 15.999 |
| State at 20°C | Gas | 16O |
Why is Group 16 called chalcogens?
-Group-16 elements are also called chalcogens. They are called so because most of the copper ores have copper in the form of oxides and sulphides. They also contain small amounts of selenium and tellurium. The ores of copper are called ‘chalcos’ in Greek.
What is oxygen’s period Number?
2
Fact box
| Group | 16 | Melting point |
|---|---|---|
| Period | 2 | Boiling point |
| Block | p | Density (g cm−3) |
| Atomic number | 8 | Relative atomic mass |
| State at 20°C | Gas | Key isotopes |
How do u write the symbol of an isotope?
To write the symbol for an isotope, place the atomic number as a subscript and the mass number (protons plus neutrons) as a superscript to the left of the atomic symbol. The symbols for the two naturally occurring isotopes of chlorine are written as follows: 3517Cl and 3717Cl.