Which of the following experimental observations proved that the idea of matter and mass being evenly distributed in an atom was flawed? a. less than 1% of the alpha particles went un-deflected through the gold foil. b. less than 1% of the alpha particles were deflected by angles greater than 90°.c. the beam from the negative electrode was deflected by electrically charged rods. d. the beam from the negative electrode cast a shadow on the positive electrode.

How many atoms are in 1.4 mil of phosphorus trifluoride (pf3)

What’s the scientific notation for the number 6,840,000,000

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes