A small portion of the periodic table of the elements is reproduced here showing eight elements and the groups to which they belong. Based on its position on the periodic table, which column of elements would be most likely to chemically combine with lithium in 2:1 ratio?

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

What type of matter is made of only one kind of atom