How many elements are in a period in which only the s and p sublevels are filled

The density of platinum is 21.45 g/cm3. What is the volume of a platinum sample with a mass of 11.2 g?

What happens is that passes through the Catapillar's in the small intestine

How many dozen kernels of corn are in a 50 pound bag of corn

In which cell organelle does protein synthesis occur? cytoplasm mitochondria ribosome cell membrane

Jeffe is explaining dimensional analysis to a friend. He says that dimensional analysis can be used to convert between units. What is needed for this conversion?

How is excitation in spectroscopy brought about

What is the best reason for a student to remove a dangling bracelet when heating test tubes of acidic solutions in a hot-water bath in a chemistry lab?

What does the electron cloud model describe A. Rapidly moving neutrons B. Rapidly moving protons C. A standing wave of electron wavicles surrounding the nucleus D. Rapidly moving nucleus

35mL of acid with an unknown concentration is titrated to completion using 63mL of 3.0 MNaOH. What is the concentration of the acid?

What is the number of lone electron pairs on the central atom of a molecule having a linear molecular geometry, such as clf2-?