The molecular mass of a molecule is just the sum of the masses of each atom in it. So if water has a mass of 18, and hydrogen has a mass of 1, and there are two hydrogens and one oxygen in water (it has formula H2O), than oxygen must weigh 16. That is:
18 - (2*1) = 16
You can also look at a Periodic Table, and it will tell you the mass of every element without doing any calculations! See the Web Links to the left of the answer.
The atomic mass unit is used to express the measure of the atomic mass.
The atomic mass of magnesium is approximately 24.305 atomic mass units (amu).
It is USUALLY on the top right corner of the box.Example: Hydrogen1 1.01HThe bold #(1.01) is the elements atomic mass.*the atomic mass may vary because some books round to a certain place.
The atomic mass of iodine is less than the atomic mass of all elements with greater atomic number.
The Atomic Mass of Magnesium is 24, the RAM (relative atomic mass) is 24.305.
Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
The atomic mass unit is used to express the measure of the atomic mass.
Cobalt is an atomic mass of 58.93 atomic mass units
== The equation of atomic mass is protons+nuetrons== atomic mass. ===
Atomic no.=no. of protons Atomic Mass=no. of protons+no. of neutrons Hence, atomic mass is greater
The atomic mass of magnesium is approximately 24.305 atomic mass units (amu).
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.
Atomic number 6, atomic mass 12.
It is USUALLY on the top right corner of the box.Example: Hydrogen1 1.01HThe bold #(1.01) is the elements atomic mass.*the atomic mass may vary because some books round to a certain place.
The atomic mass of iodine is less than the atomic mass of all elements with greater atomic number.
mass #-atomic#=# of neutrons