Which of the following element has the most pronounced metallic characteristics?
1) C 2) Co
3) AI
4) Rb

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?