Why is the my plate constructed in the way it is?

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

Using the periodic table, complete the table to describe each atom. type in your answers. a ? b? c? d? e? f?

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.