How are the elements on the periodic table organized according to their properties

They are ordered based on Atomic number, the number of protons they have. The groups(columns) are based on their reactivity.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

when it gains or loses electrons