1 point After discovering electrons, J. J. Thomson proposed a model of the atom
that included which of the following ideas? *
a. Negative charges distributed evenly throughout a positively charged "ball"

b. Electrons surrounding a tiny, dense nucleus

c. Indivisible atoms consisting of no smaller particles

d. None of the above.

What is the overall order of reaction for rate = k[no]2[o2]

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.