Atomic Mass

Ununoctium.

No.

Average check refers to the average amount of money spent by a customer on a single transaction at a restaurant or business. It is calculated by dividing the total revenue generated by the total number of transactions.

Hydrogen.

The mass of carbon -12 atom is known as standard atomic mass

It is measured in Atomic Mass Unit i.e. molecular mass unit (u - micron)

1u = 1.66x10^-27 kg

huge machines able to speed up particles to very high energies before smashing them into other particles

a gigantic machine being built in Europe that will hyper accelerate two atoms then smash them together to measure the effects. this is how it is believed by many scientists the universe (think big bang) came about. there is a chance that it will create a black hole in the middle of Europe, and even a 1 in a Google chance that it completely destroys the universe.

Chromium is a meta element. Atomic mass of it is 52.

The atomic mass unit is used to express the measure of the atomic mass.

Atomic weight is a unit of measure whose unity value is that of the mass of a Hydrogen atom "1".

1 mole of helium weighs 4.0026 g

So. 18.8 of helium will weigh 75.25 g

It allows for the relative abundances of different isotopes.

gravity

Unnilunium

See the Web Links for "Answers.com: Atomic mass" to the bottom for the answer. Atomic mass refers to the weight of an atom when compared to aribitary figure that is relative to other atoms.
The unit used is 1/12 the weight of a carbon atom (the most prolific around). Atomic mass is used to avoid using very small numbers that would otherwise result if you try to physically weigh an atom.

Note that atomic mass is not the same thing as atomic weight. See the Related Question to the left for more information.

The element symbol represents one mole of element , atomic number represents number of protons, atomic mass represents sum of protons and neutrons.

18.03846 g/mol

The number of protons is the atomic mass minus the number of neutrons; in this instance 32 - 17 or 15. An atomic number of 15 corresponds to the element phosphorus; therefore, the isotope is P-32.

Sulphur is a non metal element. Atomic mass of it is 32.

Atomic mass

Be 9.012 a.m.u.

Under most readily achieved temperature and pressure conditions, bromine gas exists as diatomic molecules. Bromine is always an element.

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.

Iron is a meta element. Atomic mass of it is 56.

"Atomic mass" is the sum of the number of protons and neutrons in the nucleus of the atom.

All atoms of an element have the same number of protons. For example, all iron atoms have 26 protons. But while most (90%) have 30 neutrons, there are isotopes of iron that have anywhere from 26 to 36 neutrons. So the published "atomic mass" is the weighted average of the combined number of protons and neutrons. That's why the atomic number is always a whole number, but the atomic mass is a decimal.