The representative elements, or main group elements, consist of all elements in the table's "s" and "p" blocks, excluding the noble gases. They are grouped into alkali metals, alkaline earth metals and post-transitional metals.
yes
i know that the food have the same amount of soil
The elements in the A columns of the periodic table are called representative elements or main group elements. They are grouped into families based on similar chemical properties and valence electron configurations.
there are grouped in clomesand rows ad groups
Johann grouped together Earth, Wind, and Fire as the first three elements.
Group are based on similar properties. The elements having same chemical properties are grouped together.
the Periodic Table of elements
they are grouped by the number of valence electrons.
hydrogen
No, 3-12 elements on the periodic table (group 3 to group 12) are transition metals, not representative elements. Representative elements are found in groups 1 and 2, and 13 to 18 on the periodic table.
yes
the "A" elements