Fill in the blank: Elements found in the same vertical columns ( Group 1A, 2A, etc.) Will share common properties. In the periodic table, the vertical columns of elements are called groups, or .

answer; i believe the correct answer is (c) /// is a homogeneous mixture of gaseous substance nitrogen,oxygen and smaller amounts of other substancesmixtures can be either ( homogeneous or heterogeneous)plz check first good luck

the answer is 303.15 or 303

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying