## What is the mass number for iron-57?

Properties of Iron-57 Isotope:

Properties of Iron-57 Isotope: IRON-57
Relative Isotopic Mass 56.9353928
Neutron Number (N) 31
Atomic Number (Z) 26
Mass Number (A) 57

## What is the mass number of sulfur?

32.065 uSulfur / Atomic mass

What have a mass of 1 amu?

Since the nucleus accounts for nearly all of the mass of the atom, a single proton or single neutron has a mass of approximately 1amu.

What is the atomic mass of Fe 54?

53.9396147 u
For instance, the atomic mass of 54Fe is 53.9396147 u (9 significant digits). The masses of the other iron isotopes are known to the same high degree of accuracy.

### What element has a mass number of 57?

Iron, isotope of mass 57 | Fe – PubChem.

### What element has an atomic number of 57?

Lanthanum
Lanthanum is a chemical element with symbol La and atomic number 57. Classified as a lanthanide, Lanthanum is a solid at room temperature.

Is a neutron 1 amu?

neutron: a subatomic particle found in the nucleus of an atom. It has no charge (is neutral), and has a mass of 1 amu.

What is the mass number of Fe 56?

55.9349375
Iron-56

General
Neutrons (N) 30
Nuclide data
Natural abundance 91.754%
Isotope mass 55.9349375(7) u

#### How many protons does Fe 54 have?

Iron-54 is composed of 26 protons, 28 neutrons, and 26 electrons.

#### What is the total number of neutrons in an atom of 57 26fe?

There are 31 neutrons in the nucleus of an iron atom represented as 57 26 Fe.

How do u find mass number?

Together, the number of protons and the number of neutrons determine an element’s mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

What is the mass of 1 proton?

A proton is one of three main particles that make up the atom. Protons are found in the nucleus of the atom. This is a tiny, dense region at the center of the atom. Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67×10−27 kilograms.

## What is the atomic mass of Fe 58?

Iron, isotope of mass 58

PubChem CID 25087137
Structure Find Similar Structures
Molecular Formula Fe
Synonyms 13968-47-3 Iron-58 58fe Iron, isotope of mass 58 Fe-58 More…
Molecular Weight 57.933274

## How many neutrons does Fe 56 have?

Iron-56 is composed of 26 protons, 30 neutrons, and 26 electrons.

How many neutrons does 54 Fe have?

28 neutrons
Since the iron has the atomic number zFe = 26, we have 54 – 26 = 28 neutrons in 54Fe, and 30, 31, and 32 neutrons, respectively, in the other three isotopes given.