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Atomic Mass
Atomic mass is the mass of protons, neutrons, and electrons in a single specific atom.
1,752 Questions
What is the atomic mass of ozone?
oxygen->16
ozone=3 atoms of oxygen
Therefore, atomic mass of ozone=16X3
=48u
please rate.........
What is the basic difference between isotopes of the same element other than atomic mass?
Isotopes of the same element have the same number of protons but different numbers of neutrons in the nucleus. This results in variations in atomic mass. Isotopes can exhibit different physical properties and may have different levels of stability due to their differing numbers of neutrons.
Why is the atomic mass scale also called the relative atomic mass scale?
All atomic masses are determined by comparing them to the mass of an atom of carbon12. One atomic mass unit equals one twelfth the mass of an atom of carbon12. That's why its called relativeatomic mass.
Who find that atoms with same atomic number but different atomic mass?
Isotopes are atoms with the same number of protons (atomic number) but different numbers of neutrons, resulting in different atomic masses. These isotopes have similar chemical properties but may have different physical properties due to their different masses.
What is the atomic mass of phosphate?
if you mean phosphorus then the atomic mass is 30.973762. i don't think phosphate is an element.
What is the atomic mass of an atom with 28 protons 28 electrons and 34 neutrons?
The atomic mass of an atom is calculated by adding the number of protons and neutrons. In this case, the atom has 28 protons and 34 neutrons, so the atomic mass would be 28 (protons) + 34 (neutrons) = 62.
What is the atomic mass unit of Saturn?
Saturn is not the name of a chemical element and therefore does not have any atomic mass unit.
What type of relationship is there between the specific heat of a metal and its atomic mass?
Specific heat is a property of any substance which is how much energy it can absorb per unit mass. So the more mass the more energy can be absorbed, however the specific heat is consistent throughout a substance regardless of mass or volume.
If you are asking what is the heat capacity of a material on a volume basis, that is quite different. Suppose you are limited to a certain amount of space and you could fill this space with whatever metal you wanted. (So weight is not a factor in this case). Materials like steel or iron would be ideal. Zinc, which would weigh about the same, would not be nearly as good. Beryllium would be significantly lighter than any of these and it would be better than the zinc but, not as good as the steel. To arrive at this conclusion just multiply the specific heat of the material by its density.
What element is used to find the atomic mass of all the elements?
Atomic mass of an element is calculated based on the mass of it's protons and neutrons. This is why we get isotopes.
But I think you are talking about Carbon; the periodic table is based on 12.
What happens if the atomic mass of elements in the periodic table increase?
If the atomic mass of elements in the periodic table increases, it means the number of protons and neutrons in the atomic nucleus has increased. This can affect the element's chemical properties, such as reactivity and stability. Elements with higher atomic masses tend to be less common in nature and are often radioactive.
How does the atomic mass size change as you move down the periodic table?
Atoms increase in size as you go down a column and are larger going from right to left across a row.
because while going from left to right in a period electrons enter in the same orbit and hence the attraction between the nucleus increases ,,
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 is the atomic mass of an atom if its mass is approximately one third that of carbon 12?
The atomic mass number of an atom, if the atom's mass number is approximately equal to 0.33 that of carbon-12, would be 4. If the question is about actual masses rather than mass numbers, the mass of a helium-4 atom is about 4.00260 atomic mass units, while the mass of a carbon-12 atom is, by definition, exactly 12.000..... atomic mass units.
What is the atomic mass of an oxygen atom?
The atomic mass of an oxygen atom depends on which isotope of oxygen you are referring to. The AVERAGE atomic mass is approximately 15.9994
What does one atomic mass unit represent?
It's 1/12 of the mass of the 12C atom which is about (1.66*10-27 kgr)
People refer to it sometimes as 'Dalton -an eponym-' or 'amu - an acronym for sure-'
How does the atomic mass of carbon show that it is an isotopes?
If your asking "how does the mass show there are isotopes", then the answer is this: Isotopes are found by using a mass spectrometer, and the abundance (percent amount) of each isotope is determined. Using this percent of abundance, the AVERAGE mass is reported on the periodic table. For example, if carbon 12 had mass of 12 and carbon 13 had mass of 13, but the percent abundance of 12 was 99% and the abundance of 13 was 1%, then the atomac mass would be
12*.99+13*.01=12.01
You can tell it has isotopes by seeing that the mass is a decimal and not a whole number. It is harder to tell with carbon, because it's only off by .01, but looking at chlorine it is more clear. Most isotope weights are very close to being whole numbers, like Cl35 mass is 34.98 and Cl37 is 36.97. But looking at Cl atomic weight, it is 35.45; the .45 tells you it is a average because the value lies between the whole numbers as a decimal. Cl is 35.45, which is an average of 35 and 37 that's 76% and 24% abundance respectively.
How many electrons and What is the atomic mass and number in chlorine?
17 electrons - atomic mass 35.5 and atomic number 17
Which two elements have an atomic mass less than twice their atomic number?
Elemental hydrogen and helium have atomic masses less than twice their atomic numbers.
Which subatomic particle has a charge of 0 and a mass of 1 atomic mass unit?
A neutron is the subatomic particle with a charge of 0 and a mass of 1 atomic mass unit.
What part of the nucleus determine the atomic mass for an element?
All parts of the nucleus, protons and neutrons if any, contribute to the atomic mass. The total number of protons and neutrons in an atom is its isotope mass number.
Why is mass number slightly less than actual atomic mass?
Any "stable bound system" is stable because there is a "mass deficit" or "binding energy" that is surrendered to the Universe at large. It takes that much or more energy to break the system apart...
