Find the Zet of the following atoms: 1) Na
2) Mg
3) AI
4) P
5) S
6) cl
7) Se
8) Mn
9) Xe
10) K

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?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.