The group number is an identifier used to describe the column of the standard Periodic Table in which the element appears.
Ir refers to iridium element that is placed in group-9 and period-6 in the modern periodic table.
Th is element number 90 on the periodic table It is thorium, it is in the Actinides, and it is radioactive
It means that the elements have same number of shells. Period determines the number of shells of an element.
The periods mean the number of lines there are on the periodic table of elements.For example:Hydrogen is in period 1Iron is in Period FourThe periodic table includes ___ _______ periods.Answer:
The only thing it might mean would be number, but that is usually no. and not NO. NO would be nitrogen oxide (nitric oxide), but that would NOT appear in the periodic table, as it is a compound, and only ELEMENTS appear in the periodic table.
A period is a horizontal row.
In science, a period refers to a horizontal row of the periodic table of elements. Each period represents the number of electron shells in an atom's structure.
f mean Fluorine on a periodic table.Fluorine is a halogen with atomic number 9.It occurs in group 17 on the table.
Ir refers to iridium element that is placed in group-9 and period-6 in the modern periodic table.
Th is element number 90 on the periodic table It is thorium, it is in the Actinides, and it is radioactive
It is the Atomic Number.
There is no Fn on the periodic table of elements. However, there is Fm, Fermium, number 100.
It means that the elements have same number of shells. Period determines the number of shells of an element.
The periods mean the number of lines there are on the periodic table of elements.For example:Hydrogen is in period 1Iron is in Period FourThe periodic table includes ___ _______ periods.Answer:
The group is the column and the period is the row. Group numbers run across the top of the periodic table, and period numbers run down the left side. Group tells you the number of valence electrons and period tells you the energy level that those valence electrons are in.
It is number six in the Periodic Table.
Usually when saying "periodic," scientists usually refer to the Periodic Table. This table is the shortened version of gasses, solids, liquids, and so on.