Dalton’s theory states that atoms are the smallest possible parts of elements. in a chemical reaction, atoms will

rearrange and form new substances with new properties.
change form into completely new atoms with new properties.
be destroyed and remade into new substances.
be turned completely into energy.

Element before carbon on the periodic table

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?