30. in rutherford’s experiments, some of the aimed at gold atoms bounced back, suggesting that a solid mass was at the center of the atom.

Which of these conditions most likely produces an unstable isotope?

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.