Groups/Families are arranged vertically in different columns on the periodic table of elements. These groups/families have similar properties and chemical behaviors. True

False

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.