Which elements share the most similar chemical properties?

A. Boron and Carbon

B. Oxygen and Sulfur

C. Aluminum ad Bromine

D. Argon and Silicon

How many valence electrons are there in silicon, which has an atomic number of 14? a. 2 b. 4 c. 6 d. 8

When radiometric dating is done on a rock sample, the rock's is determined.

What element has three half filled orbitals in the 3p sublevel

At room temperature and pressure, 1 mole of any gas takes up a volume of 24dm3 Calculate the volume that 0.6 miles of fluorine occupies.

Is coal a renewable resource

A specific steroid has a λmax of 282 nm and a molar absorptivity ε of 11, 500 L mol - 1 cm - 1. What is the concentration of the compound in a solution whose absorbance at 282 nm is A = 0.060 with a sample pathlength of 1.00 cm?

The chemical formula for a covalently bonded group of atoms is called a

What is the molar mass, in grams, of a mole of an element equal to?

Isopropyl alcohol (C3H8O) is a common solvent used for cleaning and disinfectant purposes. Its mass spectrum is shown below.

How is an unsaturated fat converted to into a saturated fat?