Which type of radioactive decay produces
radiation that requires lead shielding?

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons