How many isotopes of oxygen are there?

three
The element oxygen has three stable isotopes: 16O, 17O, and 18O.

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. Large quantities of O-18 are used for the production of F-18.

Is erbium an isotope?

Natural erbium is a mixture of six stable isotopes: erbium-166 (33.5 percent), erbium-168 (26.98 percent), erbium-167 (22.87 percent), erbium-170 (14.91 percent), erbium-164 (1.6 percent), and erbium-162 (0.14 percent). Not counting nuclear isomers, a total of 30 radioactive isotopes of erbium are known.

Is oxygen 17 an isotope?

The stable isotope of oxygen with relative atomic mass 16.999131.

How does isotopes O 16O 17 and O 18 differ from each other?

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.

What is erbium group number?

group n/a
Erbium is a chemical element with the symbol Er and atomic number 68. A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements….

Erbium
Group	group n/a
Period	period 6
Block	f-block
Electron configuration	[Xe] 4f12 6s2

What is erbium-169 used for?

Erbium-169 reduces inflammation and leads to progressive articular fibrosis. Any chronic synovitis of interdigital joints resistant to appropriate conventional anti-inflammatory treatment may benefit from radio-synoviorthesis with erbium-169.

What is the difference between 16O and 18O?

Isotope Geochemistry Isotopes are forms of a chemical element that have the same atomic number but differ in mass. 16O → 8 protons + 8 neutrons; a “light” oxygen); The relative amounts are expressed as either 18O/16O or δ 18O Oxygen – 18 (aka 18O → 8 protons + 10 neutrons; a “heavy” oxygen).

What family is erbium?

rare earth family
Erbium. An element of the rare earth family of metals. It has the atomic symbol Er, atomic number 68, and atomic weight 167.26.

What’s the atomic mass number for erbium?

68Erbium / Atomic number

What is the half life of medical isotopes?

6 hours
Radionuclides used in nuclear medicine procedures, have short half-lives. For example, technetium-99m, one of the most common medical isotopes used for imaging studies, has a half-life of 6 hours. The short half-life of technetium-99m helps keep the dose to the patient low.

What is the chemical formula for erbium?

Barium ion | Ba+2 – PubChem.

What is atomic no of erbium?

How many protons neutrons and electrons does erbium have?

The nucleus consists of 68 protons (red) and 99 neutrons (orange). 68 electrons (white) successively occupy available electron shells (rings). Erbium is a lanthanide in period 6, and the f-block of the periodic table.

How many electrons are there in erbium?

2,8,18,30,8,2Erbium / Electrons per shell

What are the isotopes of erbium?

The isotopes of erbium range in atomic weight from 141.9723 u ( 142 Er) to 176.9541 u ( 177 Er). The primary decay mode before the most abundant stable isotope, 166 Er, is electron capture, and the primary mode after is beta decay. The primary decay products before 166 Er are holmium isotopes, and the primary products after are thulium isotopes.

What are the uses of erbium?

In oxide form it is used as colorant for glass, cubic zirconia and porcelain. Erbium is doped in optical silica-glass fibers which are used in optical communication. Erbium nickel alloy is used in cryocoolers (standalone cooler). It is also useful in medical applications like dermatology and dentistry.

Is erbium paramagnetic or ferromagnetic?

It is ferromagnetic below 19 K and antiferromagnetic between 19 and 80 K. Erbium is paramagnetic above 80 K [3]. Erbium sesquioxide (oxide containing three atoms of oxygen and two atoms of another element) are called erbia.

What is the most common isotope of oxygen?

Naturally occurring oxygen is composed of three stable isotopes, 16O, 17O, and 18O, with 16O being the most abundant (99.762% natural abundance). Depending on the terrestrial source, the standard atomic weight varies within the range of (the conventional value is 15.999). Known oxygen isotopes range in mass number from 12 to 24.