Which electron transition in an excited atom results in a release of energy?

A gaseous sample of nitrogen contains 2.41 grams (0.086 mol). What volume does this mixture occupy at 28 °C and 1.05 atm of pressure? Hint = Be sure to convert to Kelvin first! 0.19 L 0.38 L 1.8 L 2.0 L 4.0 L

Why a cut apple left in open turns brown?

Naturally occurring chlorine that is put in pools is 75.53 percent 35Cl and 24.47 percent Cl. Calculate the average atomic mass.

What determines how many items make up a particular unit

Which part of the body is responsible for absorbing nutrients? a. Small intestine b. Stomach c. Large intestine d. Pancreas

Use the periodic table to determine the electron configuration for Ca and Pm in noble-gas notation Ca: [Ar]4s2 [Ar]4s1 [Ar]3s2 [Kr]4s2

What is ph of a solution

How is the electron cloud model different from Bohr's atomic model?

The Barton Springs salamander lives only at the spring outflows of Barton Springs near Austin, Texas. They are often found under rocks or among gravel in water several inches to fifteen feet deep.

you see a structural formula and which the symbols for elements are connected by a long Dash you can assume that the chemical bonds in the compound are