What is one similarity and one difference between a binary ionic compound and a binary molecular compound?

What is the maximum number of electrons that an atomic orbital can contain?

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line