55.935u is an example, which is the weight of 56Fe
atomic number atomic weight
Example sentence - We discussed various examples of atomic mass in our class today.
examples of where gases don't seem to have mass
The weight of a football is a non-example of atomic mass. Atomic mass refers to the average mass of an atom of a chemical element, while the weight of a football is a measure of the force of gravity acting on the football due to its mass.
55.935u is an example, which is the weight of 56Fe
In the periodic table, elements are generally arranged by increasing atomic number, but some are out of order based on atomic mass due to isotopes and electron configurations. Notably, elements like potassium (K) and argon (Ar) are examples where potassium (atomic mass ~39.1) appears before argon (atomic mass ~39.9), even though argon has a higher atomic mass. This occurs because the periodic table prioritizes the atomic number (number of protons) over atomic mass when ordering elements. Other examples include isotopes and the placement of certain transition metals.
Three pairs of elements that are not ordered by atomic mass are: potassium (K, atomic mass ~39.1) and argon (Ar, atomic mass ~39.9), where potassium comes before argon in the periodic table; cobalt (Co, atomic mass ~58.9) and nickel (Ni, atomic mass ~58.7), where cobalt is placed before nickel; and iodine (I, atomic mass ~126.9) and tellurium (Te, atomic mass ~127.6), where iodine precedes tellurium. These examples highlight instances where the arrangement of elements does not strictly follow increasing atomic mass.
Mass number is the total number of protons and neutrons in an atom's nucleus. Non-examples of mass number would include atomic number (number of protons in an atom), electron configuration (arrangement of electrons in an atom), and atomic mass (average mass of an atom, taking into account all isotopes).
It is difficult to be sure what the question is about because it has been truncated.However, it is true that the atomic mass (or standard atomic weights) increases with atomin number. There are, of course, isotopes of elements with a low atomic number which are heavier than atoms of higher atomic number. But there are some examples where the average mass is not in the expected sequence.
Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
Atomic mass