Phosphorus, iron, and iodine all have at least one isotope that is stable, and any of these would do for the longest half life. In fact, the radioactive isotopes of phosphorus are all synthetic, so radioactive phosphorus is not found in nature.
An isotope of iodine with 74 neutrons would have a mass number of 53 +74 = 127. Therefore its symbol would be I -127 or 127 C 53. 127 and 53 should be written as superscript and subscript respectively before writing the chemical symbol of iodine when using the later (127 C 53).Ê 53 is the atomic number of iodine.ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ
There is no such isotope (75) known. Iodine (atom number 53, average atomic mass 127) has 53 protons and 70 up till 82 neutrons. The lowest known isotope number therefor is 123.
Iodine is the most electronegative element among phosphorus, carbon, chlorine, boron, and iodine.
Iodine and phosphorus can react together to form phosphorus triiodide (PI3). This compound is a highly reactive and potentially hazardous substance that is sensitive to moisture and heat.
Phosphorus and iodine form a covalent bond. In covalent bonds, atoms share electrons to achieve a stable electron configuration.
An isotope of iodine with 74 neutrons would have a mass number of 53 +74 = 127. Therefore its symbol would be I -127 or 127 C 53. 127 and 53 should be written as superscript and subscript respectively before writing the chemical symbol of iodine when using the later (127 C 53).Ê 53 is the atomic number of iodine.ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ
Iodine-131 is a radioactive isotope of the element iodine.
There is no such isotope (75) known. Iodine (atom number 53, average atomic mass 127) has 53 protons and 70 up till 82 neutrons. The lowest known isotope number therefor is 123.
Iodine-131 (not iodone) is a radioactive isotope of iodine: this isotope has important applications in the treatment of thyroid diseases.
Iodine is the most electronegative element among phosphorus, carbon, chlorine, boron, and iodine.
Iodine and phosphorus can react together to form phosphorus triiodide (PI3). This compound is a highly reactive and potentially hazardous substance that is sensitive to moisture and heat.
Phosphorus triiodide (PI3) is formed from its elements, phosphorus and iodine, through a reaction where phosphorus reacts with iodine vapor. The reaction is highly exothermic, producing white fumes of phosphorus triiodide. The resulting compound is a red solid that is sensitive to air and moisture.
This element is iodine because it is a halogen.
This is stable isotope of iodine - iodine-127.
10 Boron Carbon Silicon Phosphorus Sulfur Arsenic Selenium Tellurium Iodine Astatine
Phosphorus and iodine form a covalent bond. In covalent bonds, atoms share electrons to achieve a stable electron configuration.
A covalent bond will form between phosphorus and iodine. Phosphorus and iodine are both nonmetals, so they share electrons in order to complete their outer electron shell and achieve stability.