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What relationship exist between the atomic mass and the isotopes?
Wiki User
∙ 9y ago
When Atomic Mass is expressed in unified atomic mass units, it is similar to isotopic mass and has the same numerical value as that of atomic mass. The atomic mass or the relative isotopic mass is the mass of one atom which at a time can be only one isotope.
Wiki User
∙ 9y ago
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Who invented isotopes?
Isotopes were not invented - they exist in nature. They were discovered when the atomic mass of Chlorine was measured at 35.5
Why don't the elements on the periodic table have a whole number as their atomic weight?
Elements exist as isotopes in nature. So their atomic weight is not a whole number.
What relationship exist between the mass number of an element and the isotopes of that element?
Each isotope of the same element has a specific mass number, which is the sum of the protons and neutrons in the nucleus.
How the elements of isotopes are alike and how they are different?
Elements can exist in the form of different isotopes. Isotopes of the same element have the same number of protons in their nuclei but have different numbers of neutrons. The first gives them the same atomic number and chemical properties while the second gives them different atomic weights.
Why is there an average atomic mass?
There is an average atomic mass because all atoms of the same element do not have the same amount of neutrons (isotopes), therefore variations in atomic mass exist. The average atomic mass of an element is the estimated average of all the atoms of the same element, given the average of different isotopes in a scientific sample.
How many neutrons does the element Ds have?
Darmstadtium is an artificial element; no stable isotopes exist. From Wikipedia: "Eight different isotopes of darmstadtium have been reported with atomic masses 267, 269-271, 273, 277, 279, and 281, ..." The numbers are protons + neutrons. Subtract 110 (the atomic number for this element) to subtract the protons, and get the number of neutrons for the different isotopes. In other words, between 157 and 171, depending on the isotope.
What is the isotopic symbol of boron?
B is the atomic symbol. a number of different Isotopes exist for this element.6B, 7B, 8B, and so on and so forth.
The atomic mass of iron is 55.847 amu. Why isn't this value a whole number?
because it's an average of various isotopes, in proportion in which they exist in nature
How many stable nuclides exist for elements that have and atomic number above 83?
All isotopes of all elements with atomic number similar or greater than 84 are radioactive, and don't have stable nuclei.
Are most of the periodic table isotopes?
No most of them are not isotopes. Few elements exist as isotopes.
Why odd atomic number elements have 2 isotopes?
I don't know where you got the notion that elements of odd atomic numbers have two isotopes, but we don't have to look far for a counterexample: hydrogen... atomic number 1... has not one, not two, but THREE isotopes that exist for meaningful lengths of time. If you mean STABLE isotopes, then we have to go a bit further: the first four elements of odd atomic number (hydrogen, lithium, boron, nitrogen) do in fact have two stable isotopes. However, at the fifth we find our counterexample: fluorine (atomic number 9) has only one stable isotope, fluorine-19. Furthermore, helium (atomic number 2) ALSO has two stable isotopes, so we can't even invert the original question and ask why EVEN atomic number elements DO NOT have two isotopes. The question is therefore meaningless, as it's asking for an explanation of something that does not, in fact, actually happen.
How do isotopes work?
Isotopes are atoms that have the same atomic number or number of portions, but a different number of neutrons and therefore a different atomic mass, they also buttrape orphans in africa.
