294
Elements with the highest atomic mass can be found towards the bottom of the periodic table, typically in the bottom rows known as the actinide and lanthanide series. These elements include heavy elements such as uranium, thorium, and plutonium.
By Atomic Mass
Atomic Mass
The element with the lowest average atomic mass is hydrogen (H) at 1.008 grams. The element with the highest is meitnerium (Mt) at 266 grams.
the atomic mass is on some periodic tables and is the decimal. for example... for carbon the atomic mass is 12.01 on my periodic table that i am looking at go to this website. http:/www.ptable.com. it should have a periodic table and the atomic mass is on the very bottom of each box. for example the atomic mass for bromine is 79.904
Elements with the highest atomic mass can be found towards the bottom of the periodic table, typically in the bottom rows known as the actinide and lanthanide series. These elements include heavy elements such as uranium, thorium, and plutonium.
By Atomic Mass
The element with the highest atomic mass is Oganesson.
Atomic Mass
The element provisionally named ununoctium, believed discovered in 2003, has atomic number 118 in Period 7, column 18, with an atomic weight of 294. Once confirmed, it will be given its permanent element name.
The element with the lowest average atomic mass is hydrogen (H) at 1.008 grams. The element with the highest is meitnerium (Mt) at 266 grams.
the atomic mass is on some periodic tables and is the decimal. for example... for carbon the atomic mass is 12.01 on my periodic table that i am looking at go to this website. http:/www.ptable.com. it should have a periodic table and the atomic mass is on the very bottom of each box. for example the atomic mass for bromine is 79.904
Atomic mass is determined by mass spectrometry.
The atomic number is the whole # on the periodic table or the # of protons in an atom. The atomic mass is the # that is not the whole # on the periodic table, or you can multiply the mass of the isotope by its abundance and add the answers together.
number of protons = atomic mass
Mendeleev arranged the periodic table according to increasing atomic mass. This method has been used since he first developed it in the 1800s.
Mendeleev used atomic mass to arrange periodic table.He gave his model in 1869.