because it's an average of various isotopes, in proportion in which they exist in nature
The nearest Whole number of atomic mass of potassium is 69
The atomic number refers to the number of protons in the atom. Since the proton cannot be an in-between number, the atomic number will have to be a whole number. On the other hand, the atomic mass does not have to be a whole number because it is the mass of an atom and is roughly equivalent to the number of protons plus the average number of neutrons in that particular element.
Few elements have isotopes. their atomic mass is not a whole number.
Elements exist as isotopes in nature. So their atomic weight is not a whole number.
Bexause its similar with the atomic mass
Because its rational equivalent, in simplest form is 55847/1000. The denominator is not 1.
Because the equivalent rational expression is 55847/1000 which cannot be simplified so that the denominator is 1.
Atomic mass of isotopes is not a whole number.
No. Atomic number is always a whole number. This would be the atomic mass.
6. An atomic number is always a whole number, so it does not need rounding.
The nearest Whole number of atomic mass of potassium is 69
The atomic number refers to the number of protons in the atom. Since the proton cannot be an in-between number, the atomic number will have to be a whole number. On the other hand, the atomic mass does not have to be a whole number because it is the mass of an atom and is roughly equivalent to the number of protons plus the average number of neutrons in that particular element.
No element has this atomic number. All atomic numbers are whole numbers.
Few elements have isotopes. their atomic mass is not a whole number.
Usually they are measuring just the necleus of the atom since it would be a whole number. This is called finding the Mass number. The atomic weight is the whole atom together, which is a whole lot of decimals. So they take the atomic weight and round it to a whole number for the mass number. For example, Boron (an element on the table) has an atomic weight of 10.811. But scientists round the number upward to 11 to be the Mass number.
The question is based on an ignorance of what an atomic number is. It represents the number of protons in an atom of the element and is always, ALWAYS a whole number.
0.4 is not a whole number and so no whole number has a value of 0.4