What element has one electron in its 4f sublevel?

The alcohol content of hard liquor is normally given in terms of the "proof," which is defined as twice the percentage by volume of ethanol (C2H5OH) present. Calculate the number of grams of alcohol present in 1.00 L of 48-proof gin.

When an atom of phosphorus becomes a phosphide ion (P3-), the radius (1) decreases (2) increases (3) remains the same?

What is the charge of Pb in Pb (SO3) 2

The compound HCI is an example of a (n) A. covalent compound B. ionic compound C. element D. salt

For the transmutation X + 2^4He - > 6^12C + 0^1N, which of the following is X? A.) 4^9Be B.) 8^16O C.) 6^13C D.) 8^17O

How much energy, in joules, is released when 17 kilograms of granite is cooled from 45 C to 21 C?

Is feeling warmth from a fireplace convection, radiation, or conduction?

Which part of Dalton's atomic theory was disproved by Thomson's experiment? O Atoms cannot be created, destroyed, or divided into smaller particles. O Chemical reactions occur when atoms combine, separate, or rearrange.

Of the following, which is most likely to result after a farmer sprays his crops with pesticides? A. The crops die. B. The insect population increases. C. The soil dries up and blows away. D. A neighbor's well tests positive for pesticides.

How many liters does the following number of atoms of helium take up? 9.42x10^22 atoms He