What category of elements does krypton gas belong to?

A. metals

B. metalloids

C. non-metals

The atomic mass of magnesium is the weighted average of the atomic masses of (1) all of the artificially produced isotopes of Mg (2) all of the naturally occurring isotopes of Mg (3) the two most abundant mtif1cially produced isotopes of Mg (4) the

What chemical property causes rust to form on a nail?

How does the global positioning system locate objects on Earth

There are several technological applications for the transuranium elements (Z > 92). An important one is in smoke detectors, which can use the decay of a tiny amount of americium-241 to neptunium-237.

Select the steps that are associated with energy entering the system. Check all that apply. a. the separation of solvent molecules b. the separation of solute molecules c. the mixing of solute and solvent molecules

Ammonia can be prepared by the reaction of magnesium nitride with water. The products are ammonia and magnesium hydroxide. Write and balance the equation.

Which period is the shortest in the long form of the periodic table? Name all the elements in this period.

A mole of gas at 0.0oC and 760. torr occupies 22.4 L. What is the volume of this gas at 25. oC and 760. torr

Is a nylon string conductor or insulator

Discuss 2 ways the cells are alike