A. define the electron dot diagram.
b. use the electron dot diagram to represent 3 elements.
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How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?