metals (left side of periodic table) become positive ions so calcium would be the answer
I'm pretty sure this would be a solid because particles are the least spread out when they are in the solid state of matter
If the sentences after the question are multiple-choice, I believe it is the second sentence (New information is discovered that contradicts the existing theory).
what is the list of things? food handlers usually have to wear hairnets, gloves and wash their hands often to prevent cross contamination and the spread of bacteria.
