Which scientist proposed the "plum pudding" model of the atom?

Why do some transition metals have multiple oxidation states? Transition metals have multiple oxidation states because of their sublevel.

Why are mixtures easier to separate than compounds

What is the molar mass, in grams of a mole of an element equal to? the number of electrons in the element OB the atomic weight of the element the atomic number of the element D. the number of neutrons in the element

How does the space between the particles in each state of matter differ

After measurements or observations are made in a scientific investigation, it is most appropriate to

Suppose you were given a substance and asked to determine whether or not it was a plasma. Write the characteristics you would look for to identify the substance.

What is a comet? tell in a short and easy answer

In calcium fluoride, what is the closets noble gas that each ion becomes?

Americium-241 is used in some smoke detectors. it is an alpha emitter with a half-life of 432 years. how long will it take in years for 45.0 % of an am-241 sample to decay?

What is the purpose of forming a scientific hypothesis? It starts a plan to test your idea It provides the answer to your investigation It allows you to prove your idea is correct