Contents
How many neutrons does iodine-127 have?
74
SolutionThe atomic number of iodine (53) tells us that a neutral iodine atom contains 53 protons in its nucleus and 53 electrons outside its nucleus. Because the sum of the numbers of protons and neutrons equals the mass number, 127, the number of neutrons is 74 (127 − 53 = 74).
How many neutrons and protons does iodine have?
53
Iodine/Atomic number
Does iodine have 78 neutrons?
Iodine is element number 53. Iodine has 53 protons and 53 electrons (because it has no charge the number of protons equals the number of electrons). Iodine-131 has 131 protons and neutrons. Iodine-131 has 131 minus 53 protons = 78 neutrons.
How many protons are in iodine-131?
Iodine-131
| General | |
|---|---|
| Protons | 53 |
| Neutrons | 78 |
| Nuclide data | |
| Half-life | 8.0197 days |
Does any iodine melt?
Iodine is one of the most striking and beautiful of all elements. As a solid, it is a heavy, grayish-black, metallic-looking material. When heated, it does not melt. If heated under the proper conditions, it can be made to melt at 113.5°C (236.3°F) and to boil at 184°C (363°F).
Is iodine 126 stable?
Unsourced material may be challenged and removed. There are 37 known isotopes of iodine (53I) from 108I to 144I; all undergo radioactive decay except 127I, which is stable. These are 123I, 124I, 125I, and 131I.
What has 53 protons and 74 neutrons?
iodine
The most common, stable form of iodine has an atomic number of 53 (protons) and an atomic weight of 127 (53 protons plus 74 neutrons). Because its nucleus has the “correct” number of neutrons, it is stable and is not radioactive.
What is the cost of iodine?
The average annual cost, insurance, and freight value of iodine imports in 2020 was estimated to be $31 per kilogram, about a 17% increase from that of 2019.
Is iodine anion or cation?
Please visit the Iodine element page for information specific to the chemical element of the periodic table. Iodide is a halide anion and a monoatomic iodine. It has a role as a human metabolite.
What is the most stable radioisotope?
Two examples may help clarify this. The most stable isotope of uranium, U-238, has an atomic number of 92 (protons) and an atomic weight of 238 (92 protons plus 146 neutrons). The isotope of uranium of greatest importance in atomic bombs, U-235, though, has three fewer neutrons.
How many neutrons are there in iodine atomic mass?
How many neutrons are there in iodine? Name Iodine Atomic Mass 126.90447 atomic mass units Number of Protons 53 Number of Neutrons 74 Number of Electrons 53
How many valence electrons does iodine ( I ) have?
● Number of electrons in iodine (I) is 53.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of iodine (I) . How many valence electrons does selenium (Se) have?
What is the chemical symbol for iodine isotopes?
The chemical symbol for Iodine is I. Mass numbers of typical isotopes of Iodine are 127. The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. Neutron number plus atomic number equals atomic mass number: N+Z=A.
What is the total number of neutrons in an atom?
The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. Neutron number plus atomic number equals atomic mass number: N+Z=A. The difference between the neutron number and the atomic number is known as the neutron excess: D = N – Z = A – 2Z.