Salt and sugar appear similar, but their crystals look different at the atomic level. What does this say about the molecular structures of salt and sugar?

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

How have the greenhouse gasses increased from the year 2000 to 2018

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers