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The atomic number is the number of protons.

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9y ago

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What element has the atomic number for 3.14?

No element has this atomic number. All atomic numbers are whole numbers.


Why are the elements 94 through 110 in the periodic table whole numbers?

1. All the atomic numbers are whole numbers. 2. If you think to atomic weight of heavy radioactive elements (atomic numbers from 93 to 118) is a rule of IUPAC to indicate in square parenthesis, [], the atomic mass of the most stable or known isotope.


Why aren't the atomic masses of most elements whole numbers?

The atomic masses of most elements are not whole numbers because they take into account the average mass of all the isotopes of that element, which have different masses due to varying numbers of neutrons. This results in a weighted average that is not a whole number.


Why is the relative atomic mass of chloride not a whole number?

Because relitive atomic masses are NEVER whole numbers.


Why are all atomic numbers all whole numbers and most atomic mass number end with a decimals?

this is because the atomic number is the number of protons in an atom, and this never changes. However, the recorded atomic mass is a weighted average of all of the isotopes of the atom, because atomic mass is the number protons plus the number of neutrons, and the number of neutrons in an atom differs, causing different atomic masses.


Why are atomic numbers always whole numbers?

Atomic numbers represent the number of protons in an atom's nucleus, which are always whole numbers because protons are indivisible particles. Atomic numbers cannot be fractions or decimal numbers because they refer to a count of discrete, whole particles.


Why are atomic numbers listed as whole numbers?

The atomic number is derived from how many protons are present in the nucleus of an atom. Becaue you cannot have a fraction of a proton present in an atom, atomic numbers must be non negative integers.


How are decimals and whole numbers similar?

All whole numbers are decimal numbers.


Why the atomic mass numbers listed for elements on the Periodic Table are not whole numbers.?

Why are atomic masses of elements not generally whole numbers? The atomic masses listed on the periodic table are a weighted AVERAGE of an element'sisotopes. ... An element's atomic number is the number of protons in its nucleus. Number of protons specifies atom type.


Why don27t elements in the periodic table have whole numbers for their atomic masses?

Because the masses of protons, neutrons and electrons are not whole numbers.


Is some whole numbers are not integers?

No. All whole numbers are integers and all integers are whole numbers.


Do all isotopes have whole number atomic masses?

The short answer is yes. The long answer is that isotopes have different numbers of neutrons than other isotopes of the same element, so when expressing the mass of an isotope, you don't take an average; you just add the number of neutrons and the number of protons. However, that number is not entirely accurate since the mass of a proton and a neutron are very slightly different. So, if you want to be very exact, then no, the mass of an isotope is not a whole number, but it is very, very close.