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No. Atomic masses have to be determined by using measuring instruments, which means that they can never be determined precisely. Every measuring instrument has a limit to its accuracy. There is wide agreement that it is impossible to build a perfect measuring instrument. Scientists have constructed some amazingly accurate measuring techniques, but no exact ones.
What else can I help you with?
The current standard for atomic masses is?
The current standard for atomic masses is based on the Carbon-12 isotope. It is defined as exactly 12 atomic mass units (amu), with all other atomic masses determined relative to it. This standard allows for consistency in measurements and comparisons of atomic masses across different elements.
Why are gram formula masses called relative masses?
They are called relative masses because all of the masses of the elements are measured relative to the mass of an isotope of carbon called carbon-12. Carbon-12 has been assigned a mass of exactly 12 atomic mass units. One atomic mass unit has an actual value of 1.660538782(83)×10^−27 kg.
Do all elements have different atomic masses?
yes
Number of atomic masses does radium have?
See the link below for the masses of all radium isotopes.
Number of atomic masses radium has?
See the link below for the masses of all radium isotopes.
How is average atomic mass determined from isotopic masses?
The atomic mass that you see on the periodic table is an average mass taken from all of the element's known isotopes. Simply find the average of all of the masses of the isotopes of an element.
What element are atomic masses of all element based on?
carbon
An average of the masses of all the naturallly occurring isotopes of an element?
The weighted average for all isotopes that occur in nature for an element is its atomic weight listed on the Periodic Table of the elements.
Explain Why is atomic mass unit used to express atomic mass?
Originally these relative masses were based on hydrogen, known to be the lightest element, having a mass of 1 u, and all the MORE
State the name and the mass of the isotope relative to which all atomic masses are measured?
The isotope used as the reference for atomic masses is carbon-12, with a mass of 12 atomic mass units (amu).
Which statement best explains why most atomic masses on the periodric table are decimal numbers?
Most atomic masses on the periodic table are decimal numbers because they are weighted averages of the masses of all isotopes of an element, taking into account their relative abundance. Since isotopes have different masses, the atomic mass is typically not a whole number.
What has an average of the masses of all naturally ocuring isotopes of an element?
The atomic mass or atomic weight as it is sometimes called.
