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 isotope has 53 protons and 75 neutrons?
| Isotope: Content of Nucleus: | Iodine-124 53 protons, 71 neutrons | Iodine-125 53 protons, 72 neutrons | Iodine-128 53 protons, 75 neutrons | Iodine-129 53 protons, 76 neutrons |
|---|
What element has 53 protons 74 neutrons and 54 electrons?
| Name Iodine | Atomic Mass 126.90447 atomic mass units | Number of Protons 53 | Number of Neutrons 74 | Number of Electrons 53 |
|---|
What element has 52 protons 74 neutrons?
#52 –
Tellurium – Te
. It is a relatively rare element as the rarest stable solid element in the earth’s crust.
What has 53 protons and 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.
What is the chemical symbol for iodine?
iodine (
I
), chemical element, a member of the halogen elements, or Group 17 (Group VIIa) of the periodic table.
What is the number of protons in iodine?
The 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).
What is the number of neutrons in iodine?
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).
What element has 18 protons and 22 neutrons?
| Name Argon | Atomic Mass 39.948 atomic mass units | Number of Protons 18 | Number of Neutrons 22 | Number of Electrons 18 |
|---|
Who discovered tellurium?
Tellurium (from the Latin tellus meaning “earth”) was discovered in 1782 by
the Hungarian Franz-Joseph Muller von Rechenstein (Müller Ferenc)
. Another Hungarian scientist, Pal Kitaibel, also discovered the element independently in 1789. Tellurium was named in 1798 by Martin Heinrich Kaproth who had isolated it earlier.
What do you call the element from atomic number 57 71?
The elements from atomic number 57 to 71 are called
Lanthanides
. They are called lanthanides, since lanthanum is chemically identical to the elements in the sequence. … The lanthanides are between Barium and Hafnium.
How many neutrons are in gold?
| Name Gold | Atomic Mass 196.967 atomic mass units | Number of Protons 79 | Number of Neutrons 118 | Number of Electrons 79 |
|---|
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 iodine has 76 neutrons?
| General | Names iodine-129 , I-129 | Protons 53 | Neutrons 76 | Nuclide data |
|---|
