What element has a complete outermost energy level and is found in the 3rd period

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

Read "who built the pyramids? ”. leave this link open while you answer the questions throughout the assignment. give at least two reasons why some people claim the pyramids of giza were constructed by aliens.