chap31 - 1 PHYS 1302 Introductory General Physics II...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 PHYS 1302 Introductory General Physics II Chapter 31:Atomic Physics 8/3/09 PHYS 1302 Chapter 31 12-2 Major milestones of atomic theory of matter s Democritus (400 BC) speculated that matter is made up of indivisible building blocks (atoms). s Chemists (400 BC -1800 ) found many elements (H, N, C ..) which bear simple relations to one another in chemical reactions. s Dalton (1800 ) proposed a quantitiave model of matter based on atoms. s Avogadro (1800 ) showed a way to weigh atoms and molecules. s Thomson discovered the electron as a basic constituent of matter. s Rutherford (1900 ) showed that mass of an atom is concentrated in the nucleus. s Bohr (1900) provided the first quantitative model of the hydrogen atom in accordance with most of the known physics at his time. s Modern science showed that the nuclei of atoms are composed of protons and neutrons . s Protons and neutrons are in turn composed of quarks s Quarks are made up of . 8/3/09 PHYS 1302 Chapter 31 12-3 Some results from relativity and quantum mechanics s Newtons Laws have to be modified at high speeds r The speed of light is constant in all inertial frames. r Space and time are relative, depending on the state of motion of the observer....
View Full Document

Page1 / 19

chap31 - 1 PHYS 1302 Introductory General Physics II...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online