Chlorine does not have atomic mass 5, so it cannot be "the only element that has a 5 atomic mass".
The atomic number of chlorine is 17, which indicates the number of protons in its nucleus. The atomic mass number of chlorine is about 35.5, which represents the average mass of its isotopes considering their relative abundances.
The element with an atomic mass of 197 is Gold.
No, you do not need the atomic number to find the atomic mass of an element. The atomic mass is the weighted average of the masses of the isotopes of an element, whereas the atomic number is the number of protons in the nucleus.
The element with an atomic mass of 27 is cobalt (Co). Cobalt is a transition metal found in the periodic table with atomic number 27.
No, the atomic weight of chlorine (35.5) is determined by the combined average weight of its protons, neutrons, and electrons. The fractional atomic weight is due to the existence of isotopes of chlorine, with chlorine-35 being more abundant than chlorine-37.
The atomic number of chlorine is 17, which indicates the number of protons in its nucleus. The atomic mass number of chlorine is about 35.5, which represents the average mass of its isotopes considering their relative abundances.
The only such element is hydrogen.
The element with an atomic mass of 197 is Gold.
only one element (hydrogen) has the atomic mass of 1.
It doesn't have an Atomic Mass, it is not an element (pure substance) it is a compound and therefore only has a molar mass.
No, you do not need the atomic number to find the atomic mass of an element. The atomic mass is the weighted average of the masses of the isotopes of an element, whereas the atomic number is the number of protons in the nucleus.
The element with an atomic mass of 27 is cobalt (Co). Cobalt is a transition metal found in the periodic table with atomic number 27.
No, the atomic weight of chlorine (35.5) is determined by the combined average weight of its protons, neutrons, and electrons. The fractional atomic weight is due to the existence of isotopes of chlorine, with chlorine-35 being more abundant than chlorine-37.
Many elements consist of more than one naturally occurring isotope. The average atomic mass of an element is the "weighted" average. This means that more "weight" or importance is given to the isotope which is in greater natural abundance.We know the percentages of each isotope. To do the calculation we will express each percentage as its corresponding decimal fraction.Average atomic mass = (fraction1 x atomic mass1) + (fraction2 x atomic mass2) + (fraction3 x atomic mass3) ...Cstspeedy has given you the gist of the calculation, and has mentioned that the numbers used will only produce an approximation of the average atomic mass. What should be used are more precise measurements of the percent abundances and the actual masses of the isotopes.This is the important part. The mass numbers are NOT the actual masses of the isotopes. They are close, but not the same. The actual isotopic masses are known very precisely.For instance, Cl-37 has a mass of 36.965902591 amu. We don't need to use all those digits, but they represent the actual mass of the isotope.So for the chlorine example, where there are only two naturally occurring isotopes, you would use the following. 75.58 percent of chlorine atoms are chlorine-35 and 24.22 percent of chlorine atoms are chlorine-37.The average atomic mass = 0.7578 x 34.9689 + 0.2422 x 36.9659 = 35.453 amu
the atomic mass of just pure carbon would be twelve. the atomic mass is only effected by the number of protons and numbers of nuetrons
Atomic mass numbers are not properties of elements overall, but only of particular isotopes of elements. The only stable element with an isotope with mass number 11 is boron. Beryllium and carbon also have isotopes with mass number 11, but these are radioactive.
To find the number of neutrons in an element, subtract the atomic number (number of protons) from the atomic mass number (rounded mass of the element). The atomic number can be determined from the element's position on the periodic table.