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To what number does the atomic mass refer?
After the IUPAC rules, atomic mass is an expression used only for the mass of isotopes (in atomic mass units).
Standard for the atomic mass number?
An atom of carbon-12 has a mass of exactly 12 atomic mass units. This is now the standard.
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 is the atomic mass of Darmstadtium?
The standard atomic weight of darmstadtium is considered 281.
The atomic mass is the?
The expression atomic mass is used only for isotopes; the atomic mass is the mass of an atom expressed in unified atomic mass units - (1 amu = 1/12 atomic mass of carbon-12).For elements the expression is atomic weight; the unit is the same.
Where does the atomic mass of chlorine come from?
The atomic mass of chlorine is calculated based on the average mass of all the naturally occurring isotopes of chlorine and their relative abundance in nature. Isotopes are atoms of the same element with different numbers of neutrons in their nucleus, which affects their atomic mass. The average atomic mass of chlorine is approximately 35.45 atomic mass units.
What two pieces of information can be determined from the atomic mass?
The number of protons and neutrons in the atom can be determined from the atomic mass. The atomic mass represents the average mass of the isotopes of that element in atomic mass units.
Is the atomic mass of hydrogen 3?
The atomic mass of the most common form of hydrogen is 1. There are isotopes of hydrogen with a mass of 2 (deuterium) and 3 (tritium), but they are rare.
What is the defined atomic mass in amu of this isotope?
The atomic mass of an isotope is the weighted average mass of all the isotopes of that element based on their natural abundance. It is expressed in atomic mass units (amu).
What is the same in isotopes?
isotopes always have the same? mass # & atomic #, or atomic # and atomic weight, or atomic # but different mass #'s
Which best describes the definition for the atomic mass of an element?
The atomic mass of an element is the average mass of an element's isotopes, weighted by their natural abundance. It is expressed in atomic mass units (u) and is often close to the mass number of the most abundant isotope of the element.
How atomic Mass can be compared with atomic mass of carbon?
Atomic mass is typically expressed relative to a standard reference, which is commonly carbon-12. The atomic mass of an element is determined by the average mass of its isotopes, weighted by their natural abundance, and is usually compared to the atomic mass of carbon, which is defined as exactly 12 atomic mass units (amu). Thus, when we say an element has an atomic mass of, for example, 24 amu, it means it is twice as heavy as carbon-12. This comparison helps in understanding the relative mass of different elements in relation to a stable and widely recognized standard.
