The wavelength of light in the 5 to 2 transition than the wavelength from the 4 to 2.​

Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

Substance x has a fixed volume, and the attraction between its particles is strong .substance y had widely spread out particles and can be compressed what can most likely be concluded about these substances