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.
The element potassium has the symbol 'K' on the periodic table. Its atomic number is 19.
The atomic number of the element with the symbol "Pt" on the periodic table is 78.
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.
Technetium has the symbol of Tc. It has the atomic number of 43.
No, the symbol "H" stands for Hydrogen on the periodic table. The symbol "He" stands for Helium on the periodic table.
The element potassium has the symbol 'K' on the periodic table. Its atomic number is 19.
The atomic number of the element with the symbol "Pt" on the periodic table is 78.
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.
Technetium has the symbol of Tc. It has the atomic number of 43.
Calcium is number 20 on the periodic table. Its symbol is Ca.
Zirconium is having atomic number 40 in the periodic table. Its symbol is Zr.
At and it is number 85 on the periodic table!!
Cesium. See the link below for a periodic table
Barium, on the periodic table, has an atomic number of 56. Ba is the symbol for barium.
The number listed above the symbol of an element on the periodic table is the element's atomic number.
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.
Periodic table describes the symbol, atomic number, mass number of different elements in general.