answersLogoWhite

0

The lower left number on an element refers to the standard atomic weight, meaning the average mass of the atoms of an element. This is in comparison to the relative Atomic Mass, which compares the average mass of the element to 1/12 the mass of Carbon-12.

User Avatar

Wiki User

10y ago

What else can I help you with?

Related Questions

What symbol does potassium have on the periodic table?

The element potassium has the symbol 'K' on the periodic table. Its atomic number is 19.


What is the atomic number of the element with the symbol "Pt" on the periodic table?

The atomic number of the element with the symbol "Pt" on the periodic table is 78.


What is the symbol for Calcium in the Periodic Table?

The atomic symbol for an isotope of calcium will be the regular symbol for calcium, Ca. The number of protons will differ from standard calcium. This is written below the mass number Ca.


What is the symbol for Technetium on the periodic table?

Technetium has the symbol of Tc. It has the atomic number of 43.


What is number 20 on the periodic table?

Calcium is number 20 on the periodic table. Its symbol is Ca.


What number is zirconium on the periodic table?

Zirconium is having atomic number 40 in the periodic table. Its symbol is Zr.


What is astatine's symbol?

At and it is number 85 on the periodic table!!


What is periodic table number 55?

Cesium. See the link below for a periodic table


What is the 56element of periodic table?

Barium, on the periodic table, has an atomic number of 56. Ba is the symbol for barium.


What is the number listed for each element on the periodic table?

The number listed above the symbol of an element on the periodic table is the element's atomic number.


By referring to the periodic chart indicate which is the mass number of copper?

The mass number of copper (Cu) is 63.5. This can be found by looking at the number located below the symbol "Cu" on the periodic table.


What does the periodic table describe about an element?

Periodic table describes the symbol, atomic number, mass number of different elements in general.