An atom gains two electrons, this is the new electron configuration: 1s22s22p63s23p64s23d104p6 What is the element symbol of this negatively charged atom?

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.