How many neutrons does La 138 have?
81
Properties of La-138 Isotope:
| Properties of La-138 Isotope: | LA-138 |
|---|---|
| Neutron Number (N) | 81 |
| Atomic Number (Z) | 57 |
| Mass Number (A) | 138 |
| Nucleon Number (A) | 138 |
How many protons and neutrons does CE 138 have?
Cerium-136 which has 58 protons and 78 neutrons in its nucleus and is radioactive. Cerium-138 which has 58 protons and 80 neutrons and is stable. Cerium-140 which has 58 protons and 82 neutrons and is stable. Cerium-142 which has 58 protons and 84 neutrons and is radioactive.
How many protons neutrons and electrons does lanthanum-139 have?
Diagram of the nuclear composition and electron configuration of an atom of lanthanum-139 (atomic number: 57), the most common isotope of this element. The nucleus consists of 57 protons (red) and 82 neutrons (blue). 57 electrons (green) bind to the nucleus, successively occupying available electron shells (rings).
How many protons does La 139 have?
57
Properties of Lanthanum-139 Isotope:
| Properties of Lanthanum-139 Isotope: | LANTHANUM-139 |
|---|---|
| Atomic Number (Z) | 57 |
| Mass Number (A) | 139 |
| Nucleon Number (A) | 139 |
| Proton Number (Z) | 57 |
How many protons and neutrons are in LA?
57Lanthanum / Atomic number
How much does cerium cost?
Current prices of rare earths
| Commodity | Specification | Price in USD |
|---|---|---|
| Cerium metal | 99% min EXW China | 5154-5299 |
| Cerium metal | 99% min FOB China | 5.4-5.5 |
| Cerium oxides | 99.9% min EXW China | 1742-1815 |
| Cerium oxides | 99% min FOB China | 1850-1950 |
How do you find the amount of neutrons?
To find the number of neutrons, subtract the number of protons from the mass number. number of neutrons=40−19=21.
What is the mass of lanthanum-139?
138.906348
CHEBI:52627 – lanthanum-139 atom
| ChEBI Name | lanthanum-139 atom |
|---|---|
| ChEBI ID | CHEBI:52627 |
| Definition | The stable isotope of lanthanum with relative atomic mass 138.906348, 99.9 atom percent natural abundance and nuclear spin 7/2. |
| Stars | This entity has been manually annotated by the ChEBI Team. |
What is the proton neutron and electron of CS?
Atomic Number. 55. Number of Electrons (with no charge) 55. Number of Protons.
What is the mass of lanthanum 139?
How many protons and neutrons does CS have?
55Caesium / Atomic number