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It has a lower atomic number because it has less protons in the nucleus, it has a lower mass number because it has less neutrons and protons in the nucleus. Electrons aren't considered in any of these numbers because they only weigh about 1/2000 of a proton - they are almost weightless, even compared to an atom.

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What element has 127 atomic mass?

Iodine is a non meta element. Atomic mass of it is 127.6.


How can iodine z equals 53 have a higher atomic number yet lower atomic mass than tellurium z equals 52?

Iodine has a higher atomic number (53) because it has one more proton in its nucleus than tellurium (52). However, iodine's lower atomic mass compared to tellurium is due to differences in their isotopic composition. Isotopes of iodine with lower mass numbers are more abundant, leading to a lower average atomic mass for iodine compared to tellurium.


What element is between tellurium and the noble gas xenon?

The element between tellurium and xenon is iodine. It has an atomic number of 53.


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.


The atomic mass of iodine is less than the atomic mass of tellurium. but an iodine atom has one more proton than a tellurium atom. explain how this situation is possible?

The atomic mass of an element is determined by the total number of protons and neutrons in its nucleus. Iodine (atomic number 53) has more protons than tellurium (atomic number 52), but its atomic mass is lower because it has fewer neutrons. While iodine has 53 protons, it typically has 74 neutrons, giving it an atomic mass of about 127 amu, whereas tellurium has 52 protons and usually 76 neutrons, resulting in an atomic mass of about 128 amu. The different neutron counts in their isotopes lead to iodine having a lower atomic mass despite having more protons.

Related Questions

What element has 127 atomic mass?

Iodine is a non meta element. Atomic mass of it is 127.6.


How can iodine z equals 53 have a higher atomic number yet lower atomic mass than tellurium z equals 52?

Iodine has a higher atomic number (53) because it has one more proton in its nucleus than tellurium (52). However, iodine's lower atomic mass compared to tellurium is due to differences in their isotopic composition. Isotopes of iodine with lower mass numbers are more abundant, leading to a lower average atomic mass for iodine compared to tellurium.


What element is between tellurium and the noble gas xenon?

The element between tellurium and xenon is iodine. It has an atomic number of 53.


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.


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.


Why did mendeleev place tellurium before iodine?

Iodine's atomic number is 53 whereas tellurium's is 52. Atomic number is basically the number of protons that an element has. Therefore, as iodine has more protons than tellurium, it appears later in the table.


What neighboring elements have atomic masses out of order?

Tellurium and Iodine


What is the common isotopes of the element of tellurium?

The most common isotopes of tellurium are tellurium-128, tellurium-130, tellurium-132, tellurium-128m, and tellurium-130m. These isotopes have varying numbers of neutrons in their nuclei, giving them different atomic masses.


The atomic mass of iodine is less than the atomic mass of tellurium. but an iodine atom has one more proton than a tellurium atom. explain how this situation is possible?

The atomic mass of an element is determined by the total number of protons and neutrons in its nucleus. Iodine (atomic number 53) has more protons than tellurium (atomic number 52), but its atomic mass is lower because it has fewer neutrons. While iodine has 53 protons, it typically has 74 neutrons, giving it an atomic mass of about 127 amu, whereas tellurium has 52 protons and usually 76 neutrons, resulting in an atomic mass of about 128 amu. The different neutron counts in their isotopes lead to iodine having a lower atomic mass despite having more protons.


Why does iodine has an extra proton than tellurium?

Iodine has an extra proton compared to tellurium because it is located earlier in the periodic table. Iodine has an atomic number of 53, meaning it has 53 protons, while tellurium has an atomic number of 52, with 52 protons. This difference in atomic number reflects the number of protons in the nucleus of each element, which determines their position in the periodic table and their chemical properties.


Why did Mendeleev swap Tellurium and Iodine around?

Mendeleev swapped Tellurium and Iodine in his periodic table to maintain the chemical properties of elements within the same group. Even though Tellurium has a higher atomic mass than Iodine, their chemical properties are more similar when placed in the switched positions, following Mendeleev's periodic law.


How do you explain the fact that tellerium come before iodine in the modern periodic tablethough it has a higher atomic mass than iodine?

The position of elements in the modern periodic table is primarily determined by their atomic number, which is the number of protons in the nucleus. Tellurium (Te) has an atomic number of 52, while iodine (I) has an atomic number of 53. Despite tellurium having a higher atomic mass than iodine, it is placed before iodine because the periodic table is organized by atomic number rather than atomic mass. This organization reflects the underlying structure of the elements and their properties more accurately.