Atoms are electrically because they have the same number of protons and electrons. a. charged b. neutral

Which statement describes james chadwick’s discovery.

Stage in which a typical star has completely stopped fusion

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.