No, the properties of elements are not the same in a row or a column of the periodic table.
In the periodic table, elements are arranged in rows (periods) and columns (groups or families). As you move across a row from left to right, the properties of the elements change significantly. For example, the first element in a row, like sodium, is a highly reactive metal, whereas the last element in that row, like chlorine, is a non-metal with different reactivity. This variation occurs due to the increasing nuclear charge, which impacts the electron configurations and chemical behavior of the elements.
On the other hand, elements in the same column tend to exhibit similar properties. For instance, alkali metals (like lithium, sodium, and potassium) all share similar characteristics, such as being highly reactive and having one electron in their outer shell. This similarity is due to the fact that they have the same number of valence electrons, leading to comparable chemical behavior.
In summary, properties vary across rows and show similarity within columns, making the periodic table a clear and organized way to predict element behavior based on their position.