Write both the complete electron-configuration notation and the noble-gas notation for a barium atom.

State two physical properties of ionic compound

In an energy pyramid, which level has the most available energy?

Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.