What is the atomic mass of arsenic?
What is the atomic mass of arsenic?
74.9216 u
Arsenic/Atomic mass
Which element has a mass of 131?
Iodine I-131
Iodine I-131 is a radioactive isotope of iodine with an atomic mass of 131, a half life of eight days, and potential antineoplastic activity.
What is the 125 element?
Tellurium-125
Please visit the Tellurium element page for information specific to the chemical element of the periodic table.
What is the atomic mass of ca 40?
39.962
Variations in the isotopic composition of marine calcium have occurred over the last 80 Ma….Calcium.
| Isotope | Atomic mass (Da) | Isotopic abundance (amount fraction) |
|---|---|---|
| 40Ca | 39.962 5909(2) | 0.969 41(156) |
| 42Ca | 41.958 618(1) | 0.006 47(23) |
| 43Ca | 42.958 766(2) | 0.001 35(10) |
What is the symbol for antimony?
Sb
Antimony/Symbol
What has 33 protons and 42 neutrons?
Arsenic
| Name | Arsenic |
|---|---|
| Atomic Mass | 74.9216 atomic mass units |
| Number of Protons | 33 |
| Number of Neutrons | 42 |
| Number of Electrons | 33 |
What element has a mass number of 132?
Tellurium-132
Tellurium-132
| PubChem CID | 6336614 |
|---|---|
| Structure | Find Similar Structures |
| Molecular Formula | Te |
| Synonyms | Tellurium-132 Tellurium, isotope of mass 132 132Te 14234-28-7 |
| Molecular Weight | 131.90855 |
How do we find atomic mass?
For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.
What is the 123rd element?
Murinite (symbol Mu) is a chemical element, atomic number 123 on the periodic table.
Is there a 120th element?
Unbinilium, also known as eka-radium or simply element 120, is the hypothetical chemical element in the periodic table with symbol Ubn and atomic number 120.
What is the group number for calcium?
Group 2
Calcium was named after the Latin term calx meaning lime, and is a reactive silvery metallic element found in Group 2 of the periodic table.
What is atomic mass of CO?
58.933195 u
Cobalt/Atomic mass