Atomic Keys -

: Students use reports to communicate findings on atomic structure , focusing on observations from simulations or experiments like flame tests and spectrometry.

: Modern theory posits that matter is composed of these discrete units, as established by pioneers like John Dalton , who proposed that atoms combine in fixed ratios to form compounds. Scientific Reporting and Application Atomic Keys

: Protons and neutrons together make up the mass number ( : Students use reports to communicate findings on

: The number of protons is the atomic number ( Atomic Keys