Which of the following is a possible noble gas notation? [xe] 6s26p6 [kr] 5s25d85p6 [xe] 6s25d106p4 [kr] 5s24d105p6

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

1) this is the structure in the cell nucleus that houses a cell's genetic information