The discovery of new elements has changed the Periodic Table in several important ways:
Growth of the Table: At first, in 1869, Mendeleev knew about 63 elements. Now, we recognize 118 elements!
New Arrangements: When new elements were found, scientists looked at how to arrange them by their atomic number instead of atomic mass. This helped create the modern table we use today.
Finding Patterns: Discovering transition metals and lanthanides helped scientists see patterns, like how properties repeat every 8 elements.
Better Understanding: New elements, such as francium, helped deepen our knowledge about how elements react and their atomic structures.
In conclusion, these discoveries really improved how we classify elements, giving us better insight into their properties.
The discovery of new elements has changed the Periodic Table in several important ways:
Growth of the Table: At first, in 1869, Mendeleev knew about 63 elements. Now, we recognize 118 elements!
New Arrangements: When new elements were found, scientists looked at how to arrange them by their atomic number instead of atomic mass. This helped create the modern table we use today.
Finding Patterns: Discovering transition metals and lanthanides helped scientists see patterns, like how properties repeat every 8 elements.
Better Understanding: New elements, such as francium, helped deepen our knowledge about how elements react and their atomic structures.
In conclusion, these discoveries really improved how we classify elements, giving us better insight into their properties.