Answer:2 Fr because is has the lowest electronegativity 0.79
Flammmability is a chemical change because it changes the composition of the object. the product is very different from the rectant.
Answer:
See the explanation below, please.
Explanation:
In the bunsen burner, the gas and air inlet can be regulated manually. In the case of metals (such as lithium and sodium in this case) they contain an electron in the latter in its external electronic configuration. They are characterized by transferring electrons easily and produce the emission of light when excited, producing flames of different colors in the lighter (orange for sodium and red / scarlet for lithium)
I know water will change the shape to match the container its in if that is your question
