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1. atomic number and the ratios of its naturally occurring isotopes.
2. atomic number and the half-lives of each of its isotopes.
3. masses and the ratios of its naturally occurring isotopes.
4. masses and the half-lives of each of its isotopes.
answer: 3. masses and the ratios of its naturally occurring isotopes.
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∙ 12y ago
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∙ 13y agoThe number of protons and neutrons in the nucleus of the element. If an element occurs naturally in more than one stable isotope, the average of the isotopic atomic numbers weighted by the natural occurrence fraction of each isotope determines the atomic mass shown in a Periodic Table and other chemical reference sources.
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∙ 14y agoAVerage Atomic Mass of an element depends on both the masses of its isotopes and each isotope's
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∙ 14y agomass and relative abundance of each isotope of that element!!
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∙ 11y agoThe number of the elements in the snatch depend on the isotope's mood of a relativity of protons.
Makiah Sanders
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What is meant the atomic number of an element?
the no of protons in an atom is its atomic no the basic identity of an element depends upon its atomic no.
Does the atomic mass of an element depend upon the relative abundance of each isotope of the element?
Yes. The gram atomic mass of each element is the sum of the products of each stable isotope's isotopic fraction multiplied by the mass of that isotope.
What is the atomic mass of gas?
Atomic mass is the count of how many protons and neutrons an element contains. So, there is not really an answer to your question. It would depend upon what elements the gas is made up of.
What is wrong with arranging the elements according to their atomic mass?
"Atomic mass" varies depending on the isotope. However, the AVERAGE atomic mass, (what's printed on most periodic tables) depends on the frequency with which different isotopes occur in nature. Therefore, if one element has a higher atomic mass than another, it doesn't mean that that element IS more massive, it just means that the more massive isotopes of that element occur more frequently in nature. It is a much more constant and reasonable method of organization to organize based on the number of protons in an atom of the element, since if the number of protons changes, you've got a different element. Also, an atoms properties are largely dependent upon the number of protons it contains, for the reason stated in the last sentence above.
In the periodic table what does the number above the element tell you?
A superscript number to the left of an atomic symbol represents the mass number of a particular isotope of the element represented by the symbol. Sometimes this mass number appears on the right side instead of the left, but preferably a right superscript should be used only to indicate a net electrical charge.
What is meant the atomic number of an element?
the no of protons in an atom is its atomic no the basic identity of an element depends upon its atomic no.
What is the behavior of an element?
An Element's behavior depends PRIMARILY upon the Number of Protons in the Element's [atomic] Nucleus and secondarily upon the number of Neutrons that are included [with the occasional variation] in the Atomic Nucleus.
Does the atomic mass of an element depend upon the relative abundance of each isotope of the element?
Yes. The gram atomic mass of each element is the sum of the products of each stable isotope's isotopic fraction multiplied by the mass of that isotope.
What can you infer about two substances that have the same atomic number but different atomic mass what term would you use to classify the substance?
They are isotopes. They are the same element with a different amount of nuetrons, which can be determined depending upon the Atomic Mass and the atomic number, which results in the changed atomic mass.
What is the atomic mass of gas?
Atomic mass is the count of how many protons and neutrons an element contains. So, there is not really an answer to your question. It would depend upon what elements the gas is made up of.
What happens to an atom in terms of atomic mass and weight when it loses one particle?
If an atom looses an electron, neither the atomic mass nor atomic weight change appreciatively. If it looses a proton or neutron, both atomic mass and atomic weight decrease by one and it becomes an atom of a different element (on loss of a proton), or a different isotope of the same element (upon loss of a neutron).
How do you find the atomic mass of an element?
Atomic mass (not to be confused with atomic mass number) refers to the mass of a given atom of a specific isotope, and is often expressed in unified atomic mass units. Atomic mass is found by adding together the individual masses of the protons and neutrons in the nucleus (the mass of electrons is comparatively insignificant). The value displayed on the periodic table is a weighted average based on the relative natural occurrence of all possible isotopes of an element.What makes atomic mass complicated is the fact that elements come in more than one isotope. Chemists need to know what a given element will actually weigh, in order to know how much to use (and so forth) when working with it in their laboratories, so the atomic mass refers to the actual weight of that element, per atom on the average. This depends upon the isotopes that exist, and also upon the relative abundance of those isotopes. It can only be determined experimentally, it is not something derived from the periodic table. You have to actually weigh the element to find out what it weighs.*The atomic mass number of an element is the total number of neutrons and protons for a given isotope. For example 14C or carbon-14 has 6 protons and 8 neutrons.
What can you infer about to substances that have the same atomic number but different atomic masses What term would you use to classify the two substances?
They are isotopes. They are the same element with a different amount of nuetrons, which can be determined depending upon the Atomic Mass and the atomic number, which results in the changed atomic mass.
What is the mass of gas?
Atomic Mass is the count of how many protons and neutrons an element contains. So, there is not really an answer to your question. It would depend upon what elements the gas is made up of.
What is wrong with arranging the elements according to their atomic mass?
"Atomic mass" varies depending on the isotope. However, the AVERAGE atomic mass, (what's printed on most periodic tables) depends on the frequency with which different isotopes occur in nature. Therefore, if one element has a higher atomic mass than another, it doesn't mean that that element IS more massive, it just means that the more massive isotopes of that element occur more frequently in nature. It is a much more constant and reasonable method of organization to organize based on the number of protons in an atom of the element, since if the number of protons changes, you've got a different element. Also, an atoms properties are largely dependent upon the number of protons it contains, for the reason stated in the last sentence above.
In the periodic table what does the number above the element tell you?
A superscript number to the left of an atomic symbol represents the mass number of a particular isotope of the element represented by the symbol. Sometimes this mass number appears on the right side instead of the left, but preferably a right superscript should be used only to indicate a net electrical charge.
Do nuclei have a positive or negative charge?
Atomic nuclei have positive electrical charges. The size of the charge depends upon the element in question.
