In which, if any, of the compounds listed is the central atom not sp3 hybridized? z1) cf4 z2) h2o z3) sif4 z4) chcl3 z5) nh3 1. Z4, z5 2. Z3, z5 3. Z2, z4, z5 4. Z1, z2, z3 5. All are sp3 hybridized.

your answer would be “dry”

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.