What did J. J. Thomson's cathode ray experiment show about atoms? A. Atoms contain negatively charged particles.
B. Atoms are negatively charged.
C. Electrons move around the nucleus.
D. Most of an atom's mass is concentrated in a small space.
O

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth