Chemistry, 07.07.2019 23:30, crystalclear99
What evidence from j. j. thomson's experiments with the cathode ray led to the plum pudding model of the atom? a. the beam was attracted to a positive charge and repelled by a negative charge, showing that atoms contain small, negatively charged particles. b. the beam was attracted to a negative charge and repelled by a positive charge, showing that atoms contain small, positively charged particles. c. the beam was positively charged and had significant mass, showing that atoms have a positive, dense nucleus. d. the beam was neutral and had significant mass, showing that atoms contain neutral particles in the nucleus.
Answers: 2
Chemistry, 23.06.2019 01:00, birdman2540
Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold
Answers: 2
Chemistry, 23.06.2019 01:00, kwarwick0915
If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
Answers: 1
Chemistry, 23.06.2019 03:10, mani1682
Which of the following compounds would be expected to have the strongest ionic bonds? a)the compound that has b)the largest ions with the greatest charge c)the compound that has d)the largest ions with the least charge the compound that has the smallest ions with the greatest charge the compound that has the smallest ions with the least charge
Answers: 2
What evidence from j. j. thomson's experiments with the cathode ray led to the plum pudding model of...
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