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12. The number 12 refers to the Atomic Mass. More precisely, to the sum of neutrons + protons; but this is usually close to the atomic mass. In the case of carbon-12, it is exact, by definition.
What else can I help you with?
What is the atomic mass-?
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
The equation of atomic mass?
== The equation of atomic mass is protons+nuetrons== atomic mass. ===
What is the atomic mass of colbat?
Cobalt is an atomic mass of 58.93 atomic mass units
Is atomic mass unit a SI unit of an atomic mass?
The atomic mass unit is not a SI unit. An atomic mass unit is equal to 1/12 from the atomic mass of the isotope 12C.
What is the atomic no and atomic mass of graphite?
Atomic number 6, atomic mass 12.
Why is the atomic mass scale also called the relative atomic mass scale?
The atomic mass scale is sometimes referred to as the relative atomic mass scale because it is a scale that compares the mass of atoms of different elements to the mass of a carbon-12 atom, which is assigned a mass of exactly 12 atomic mass units. By comparing the masses of atoms relative to carbon-12, scientists can determine the relative masses of different elements.
What is carbon's atomic mass?
Carbon's atomic mass is ~12.0107. All of those decimals at the end tell us that there is more than one isotope of carbon. If you round the number, you will find the most common isotope of carbon. (Carbon12)IUPAC recommend in this case the expression atomic weight, not atomic mass.The atomic weight of carbon (IUPAC Table, 2009) is [12,0096; 12,0116]. This mean that the atomic weight is variable between the above mentioned limits, depending on the type of the sample.
What is the standard for atomic mass unit called?
One twelfth (1/12) the mass of a carbon-12 atom is one atomic mass unit (amu, or just u).
How do you find the atomic weight on the periodic table?
The atomic weight of an element on the periodic table is typically found below the element's symbol. It is usually a decimal number that represents the average atomic mass of all the isotopes of that element found in nature. It is also known as the atomic mass.
What would be an isotope of carbon12?
The 12 in Carbon-12 designates the isotope which has an atomic mass of 12. This is the most abundant isotope of carbon. Carbon has an atomic number of 6, therefore it has 6 protons. Carbon 12, therefore has 6 neutrons. Carbon 14 is another isotope of carbon, still having 6 protons, but has 8 neutrons, so it has an atomic mass of (6 + 8 = 14). See related link for more information on carbon isotopes.
What is bigger the atomic mass or atomic number?
Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater
What is the atomic mass-?
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
The mass of an atom usually expressed in atomic mass units is its?
Atomic mass.
What is the atomic mass of silver?
The atomic mass (or weight) of silver is 107.8682 amu (atomic mass units)
What is the atomic mass of aluminum?
The atomic mass number of aluminum is 27. The atomic mass of aluminum is 26.98115386
Which has the lower atomic mass cobalt or nickel?
Cobalt has a lower atomic mass than nickel. The atomic mass of cobalt is around 58.9 atomic mass units, while the atomic mass of nickel is around 58.7 atomic mass units.
What is the atomic mass of arsenic?
The atomic mass of arsenic is approximately 74.92 atomic mass units.
