> if two or more substances are combined what is always created? chemical compound molecule compound mixture

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Ineed ! i have no clue how to do this problem.

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