Oxygen and sulfur A) have 6 valence electrons
b) gain 1 electrons to gain a full outer shell
c) have an ionization charge of 2-

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). light from a hydrogen lamp illuminates a diffraction grating with 520lines/mm , and the light is observed on a screen 1.5m behind the grating. part a what is the distance between the first-order red and blue fringes? express your answer to two significant figures and include the appropriate units.

Why is metal often used for cooking pan?

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?