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The Atomic Mass of iodine is less than the atomic mass of all elements with greater atomic number.
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∙ 8y agoof Xenon
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Why does tellirium has a larger mass number than iodine?
Iodine is a non metal element. Atomic mass number of it is 127.
How tellurium and iodine show the periodic table is not arranged on basic of increasing atomic mass?
They show that the periodic table isn't arranged on the basis of increasing atomic mass because iodine has a mass lesser than tellurium. Iodine has a mass of 126.90 and tellurium has a mass of 127.60.
What two element are out of order in periodic table?
It might be Iodine and Tellurium because Tellurium has a larger atomic weight than Iodine but Iodine has more similar properties with Fluorine and Chlorine so Mendeleev placed them that way to make more sense but at that point the elements were aranged in order of atomic mass. Now the periodic table is in order of it's atomic number rather than it's atomic mass so it all fits nicely.
How can iodine z equals 53 have a higher atomic number yet lower atomic mass than tellurium z equals 52?
Because the naturally occurring isotopes of tellurium have fewer neutrons than the naturally occurring isotopes of iodine.
Which two elements have an atomic mass less than twice their atomic number?
Hydrogen and oxygen
Why does tellirium has a larger mass number than iodine?
Iodine is a non metal element. Atomic mass number of it is 127.
How tellurium and iodine show the periodic table is not arranged on basic of increasing atomic mass?
They show that the periodic table isn't arranged on the basis of increasing atomic mass because iodine has a mass lesser than tellurium. Iodine has a mass of 126.90 and tellurium has a mass of 127.60.
What element has an atomic mass greater than 75 but less than 79?
Element 34, Selenium, has an atomic mass of about 78.96.
How is it that tellurium has a greater mass number than iodine if an iodine atom has one more proton than a tellurium atom?
Iodine nuclei have one more Proton than Tellurium, but in general the Tellurium atoms have more neutrons, giving a higher average atomic mass. Elements often have isotopes, and their stated atomic masses are averages which look at the abundance of these isotopes. In a given sample of Iodine, 100% of it will be 127I, though the tiniest trace of 129I will exist. In a sample of Tellurium, 65% will be 128Te and 130Te. This makes Tellurium's average atomic mass a little higher than Iodine's.
What two element are out of order in periodic table?
It might be Iodine and Tellurium because Tellurium has a larger atomic weight than Iodine but Iodine has more similar properties with Fluorine and Chlorine so Mendeleev placed them that way to make more sense but at that point the elements were aranged in order of atomic mass. Now the periodic table is in order of it's atomic number rather than it's atomic mass so it all fits nicely.
How can iodine z equals 53 have a higher atomic number yet lower atomic mass than tellurium z equals 52?
Because the naturally occurring isotopes of tellurium have fewer neutrons than the naturally occurring isotopes of iodine.
Which two elements have an atomic mass less than twice their atomic number?
Hydrogen and oxygen
Why does plutonium have a less mass then uranium?
In their most stable forms, Uranium has an atomic mass of 238 and plutonium has an atomic mass of 244, plutonium has a greater mass than that of Uranium.
What is the atomic mass number of an isotope that has a atomic number of 6 but atomic mass of 5?
I think your understanding is confused. Atomic No. of '6' indicates the position in the periodic table, the number of protons, and the number of electrons. Atomic Mass is a number ( equal to or greater than atomic no.), which is the the total of protons and neutrons in the nucleus of an atom . So you atomic mass of '5' is incorrect as it is less than '6'. I think you mean 5 neutrons. If so the atomic mass is 6 + 5 = 11 This would be the isotopic element C-11 (Carbon eleven).
What is an element that is a Halogen Gas and with a mass less than 15?
No halogen gas has a mass of under 15 atomic mass units. The closest is fluorine, at 19.0 atomic mass units.
What element has more than 50 but less than 75 protonsand it is in group 17?
That would be iodine with an atomic number of 53. The next group 17 element is astatine with atomic number 85.
What element is a halogen gas with a mass less than 25?
Fluorine, at 19 atomic mass units, is the only halogen gas that fits that requirement.
