Write down the atomic numbers of nitrogen and sodium ?​

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation

This is the substance(s) formed in a chemical reaction.