19.0
Fluorine is a non metal element. Atomic mass number of it is 19.
Atomic mass is the measure of a mass of one atom in relation to 1/12 mass of Carbon 12 atom and measured in atomic mass unit(amu) or Dalton unit or grams/mol.Relative atomic mass is also the relative mass but does not have a unit but a ratio number.
the answer is the atomic mass unit
Atomic mass is measured in a unit called an "atomic mass unit". This unit is defined as 1/12 of the mass of a carbon-12 atom at ground state.An atomic mass unit is approximately 1.66053886 x 10-27 kg.Atomic mass is measured in atomic mass units (amu) and Daltons.
AMU stands for atomic mass unit. It is a unit of mass used to express atomic and molecular weights. 1 atomic mass unit is defined as one twelfth of the mass of an atom of carbon-12.
The atomic mass unit of an atom is the sum of the protons and neutrons in its nucleus. In this case, with 8 protons and 9 neutrons, the total atomic mass unit of the atom would be 17. The number of electrons does not significantly affect the atomic mass unit of an atom.
The atomic mass unit (amu) is a unit of mass used to express atomic and molecular weights. The atomic mass of a single atom of xenon is approximately 131.29 amu.
Unified atomic mass unit, a small unit of mass used to express atomic and molecular masses. The atomic mass unit is equal to one-twelfth the mass of a carbon-12 atom or 1,660538921(73)×10−27 kg.
because they are the sameAdded:Atomic mass is the quantitive propertie of the mass of an atom,the atomic mass unit is the (standard) UNIT by which it is measured:1 a.m.u. = 1.66*10-27 kg
the answer is the atomic mass unit
AMU stands for atomic mass unit. It is a unit of mass used to express atomic and molecular weights. One atomic mass unit is defined as a mass equal to one twelfth the mass of a carbon-12 atom.
One twelfth the mass of a carbon 12 atom is used to define an atomic mass unit (amu) or unified atomic mass unit (u). This unit is used to express atomic and molecular weights on a scale relative to the mass of a carbon-12 atom, making it a common reference point in chemistry.