The formula is Atomic Mass (rounded to the nearest whole number) minus the Atomic Number.
This works because Protons and Neutrons have virtually the same mass, and electrons virtually none. As well as the Atomic Number being equal to the amount of Protons.
Essentially:
Protons + Neutrons - Protons = Neutrons. Basic Prealgebra.
So to find the amount of Neutrons in Erbium:
Erbium's Atomic Mass rounded (167) - Erbium's Atomic Number (68) = approx. 99 Neutrons
For the isotope, Er-167, there are 99 neutrons as the atomic number of erbium is 68.
Note: mass number = number of protons + number of neutrons
i think its 6...
68, the same number as its atomic number
See link below.
2
2
All erbium ordinarily found in nature is of stable isotopes. Like all other elements, erbium has synthetic radioactive isotopes.
Two.
Isotopes. They differ in the number of neutrons in the nucleus.
That depends on the isotope, as Argon has three different stable isotopes and many different radioactive isotopes.
An atom or element that have different masses are known as isotopes.
All erbium ordinarily found in nature is of stable isotopes. Like all other elements, erbium has synthetic radioactive isotopes.
Element #68 is Erbium. The number of the isotope, of course, is the sum of the protons + neutrons. Checking the Wikipedia article "Isotopes of erbium", it looks as if this isotope doesn't actually exists.
That depends on the isotope, as Argon has three different stable isotopes and many different radioactive isotopes.
ya mom
Two.
Isotopes. They differ in the number of neutrons in the nucleus.
That depends on the isotope, as Argon has three different stable isotopes and many different radioactive isotopes.
hydrogen plus erbium
An atom or element that have different masses are known as isotopes.
Chlorine has a lot of different isotopes but the 2 stable ones are chlorine 35 and chlorine 37
Many elements have different isotopes: 1) Carbon - Carbon 12, Carbon 14 2) Hydrogen - Protium, Deuterium, Tritium 3) Chlorine - Chlorine 35, Chlorine 37 etc
what are the names of 15 different isotopes