Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a

The development of the idea of atoms passed through various stages.

The history of the development of the atomic theory passed through several stages. Each stage in the development of atomic theory was backed by empirical evidence. The theory was jettisoned only when more compelling evidence suggests that the current model is inaccurate.

The order of development of atomic theory is shown below;

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D-B-C-A

Explanation:

D: Atoms are hard, indivisible spheres — John Dalton: Atomic theory (1803)

B: Atoms have small, negatively charged particles — J. J. Thomson: cathode rays (1897)

C. The center of an atom is a small, dense nucleus — Lord Rutherford: gold foil experiment (1909)

A: Electrons have wavelike properties — Niels Bohr: Bohr model (1913)  

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)