Yahoo Αναζήτηση Διαδυκτίου

Αποτελέσματα Αναζήτησης

  1. 2 Ιαν 2011 · Models of the Atom. The document summarizes the development of atomic models over time from Dalton's model to the current quantum mechanical model. Dalton imagined atoms as spheres that differed in size and mass. Thomson discovered the electron and proposed the "plum pudding" model.

  2. 10 Μαρ 2013 · Objectives: To describe the Rutherford nuclear model of the atom. To state the relative charge and approximate mass of the electron, proton, and neutron. Ernest Rutherford received the Nobel Prize in chemistry (1908) for his work with radioactivity.

  3. 5 Φεβ 2014 · Ernst Rutherford was a physicist who won the Nobel Prize in 1908 for his work discovering the nuclear model of the atom. He conducted experiments where he bombarded gold foil with alpha particles, finding that a small fraction were deflected at 180 degrees, indicating the positive charge of an atom is concentrated in a tiny nucleus.

  4. 7 Νοε 2014 · Chapter 5 Atomic Theory: The Nuclear Model of the Atom. 5.1 Dalton ’ s Atomic Theory. Dalton ’ s Atomic Theory (1808) Each element is made up of tiny, individual particles called atoms. Atoms are indivisible; they cannot be created or destroyed.

  5. Download presentation. Presentation on theme: "The Nuclear Model of the Atom"— Presentation transcript: 1 The Nuclear Model of the Atom. 2 Radioactivity JJ Thomson undermined Dalton’s idea that atoms were hard spheres – they were more complex than that.

  6. This page contains materials for the session on the atomic models of Rutherford and Bohr. It features a 1-hour lecture video, and also presents the prerequisites, learning objectives, reading assignment, lecture slides, homework with solutions, and resources for further study.

  7. 17 Ιουλ 2016 · Niels Bohr's model represented electrons orbiting the nucleus in fixed energy levels like planets around the sun, explaining atoms' distinct properties and how they form bonds. An atom is incredibly small, with its diameter needing to be increased 200 million times to equal the diameter of a penny.

  1. Γίνεται επίσης αναζήτηση για