Pascale CCHS Review Practice Test 2024.

Pascale CCHS Review Practice Test 2024. Why were Democritus's ideas rejected by other philosophers of his time? - correct answer his ideas were rejected by other philosophers of his time because he could not prove the existence of atoms, and he was less well known than Aristotle, who basically said the same thing. Which statements in Dalton's original atomic theory are now considered to be incorrect? Describe how modern atomic theory differs from these statements. - correct answer 1) Atoms of the same element are identical. 2) Atoms cannot be created, destroyed, or DIVIDED Describe the structure of a typical atom. Be sure to identify where each subatomic particle is located. - correct answer An atom consists of three sub-atomic particles; protons, neutrons, and electrons. The protons and neutrons are located in the nucleus of the atom. What ID's The element? Why? - correct answer Protons, Which subatomic particles account for most all of an atom's mass? (4.2) - correct answer protons and neutrons Metals are generally...(characteristics) - correct answer malleable good heat conductors shiny Explain how the gaseous neon atoms in a neon sign emit light. - correct answer The valence electrons of the gaseous atoms use this energy to jump from the ground state to an excited state and then emit (give off) that energy in the form of light (and a little heat).