How can you use the density and the area of a square piece of foil to determine the height of the foil square?

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.

Is of of 3- ? a. 1--3- b. 1--2- c. 1--3- d. of

What are the trends and exceptions to the trends in electron affinity?