chem

John Dalton

• Atomic Theory: All matter (each element) is composed of tiny, indestructible particles called atoms.

  All atoms of an element are the same.

  Atoms combine in simple whole number ratios

• Built the first battery (electrochemical cell)

  Electrical current helped develop the science of charged particles.

• Atoms contain electrons

  Large positive charge and small negative charge spread throughout spherical space.

  Cathode Ray Experiment( charge-mass ration)

• Discovered radioactive

  Radioactivity: The emission of tiny, invisible particles from the nucleus of certain atoms

• Invented Nuclear Theory: Atoms contain a nucleus

  Nucleus: very small, concentrated mass of an atom. Contains protons and neutrons.

  Positive center. Negative cloud around nucleus.

Alessandro Volta

• Atomic Theory: All matter (each element) is composed of tiny, indestructible particles called atoms.

  All atoms of an element are the same.

  Atoms combine in simple whole number ratios

• Built the first battery (electrochemical cell)

  Electrical current helped develop the science of charged particles.

• Atoms contain electrons

  Large positive charge and small negative charge spread throughout spherical space.

  Cathode Ray Experiment( charge-mass ration)

• Discovered radioactive

  Radioactivity: The emission of tiny, invisible particles from the nucleus of certain atoms

• Invented Nuclear Theory: Atoms contain a nucleus

  Nucleus: very small, concentrated mass of an atom. Contains protons and neutrons.

  Positive center. Negative cloud around nucleus.

Marie Curie

• Atomic Theory: All matter (each element) is composed of tiny, indestructible particles called atoms.

  All atoms of an element are the same.

  Atoms combine in simple whole number ratios

• Built the first battery (electrochemical cell)

  Electrical current helped develop the science of charged particles.

• Atoms contain electrons

  Large positive charge and small negative charge spread throughout spherical space.

  Cathode Ray Experiment( charge-mass ration)

• Discovered radioactive

  Radioactivity: The emission of tiny, invisible particles from the nucleus of certain atoms

• Invented Nuclear Theory: Atoms contain a nucleus

  Nucleus: very small, concentrated mass of an atom. Contains protons and neutrons.

  Positive center. Negative cloud around nucleus.

J.J. Thomson

• Atomic Theory: All matter (each element) is composed of tiny, indestructible particles called atoms.

  All atoms of an element are the same.

  Atoms combine in simple whole number ratios

• Built the first battery (electrochemical cell)

  Electrical current helped develop the science of charged particles.

• Atoms contain electrons

  Large positive charge and small negative charge spread throughout spherical space.

  Cathode Ray Experiment( charge-mass ration)

• Discovered radioactive

  Radioactivity: The emission of tiny, invisible particles from the nucleus of certain atoms

• Invented Nuclear Theory: Atoms contain a nucleus

  Nucleus: very small, concentrated mass of an atom. Contains protons and neutrons.

  Positive center. Negative cloud around nucleus.

Ernest Rutherford

• Atomic Theory: All matter (each element) is composed of tiny, indestructible particles called atoms.

  All atoms of an element are the same.

  Atoms combine in simple whole number ratios

• Built the first battery (electrochemical cell)

  Electrical current helped develop the science of charged particles.

• Atoms contain electrons

  Large positive charge and small negative charge spread throughout spherical space.

  Cathode Ray Experiment( charge-mass ration)

• Discovered radioactive

  Radioactivity: The emission of tiny, invisible particles from the nucleus of certain atoms

• Invented Nuclear Theory: Atoms contain a nucleus

  Nucleus: very small, concentrated mass of an atom. Contains protons and neutrons.

  Positive center. Negative cloud around nucleus.

James Chadwick

• Atomic Theory: All matter (each element) is composed of tiny, indestructible particles called atoms.

  All atoms of an element are the same.

  Atoms combine in simple whole number ratios

• Demonstrated nucleus mass also contained neutrons

• Atoms contain electrons

  Large positive charge and small negative charge spread throughout spherical space.

  Cathode Ray Experiment( charge-mass ration)

• Discovered radioactive

  Radioactivity: The emission of tiny, invisible particles from the nucleus of certain atoms

• Invented Nuclear Theory: Atoms contain a nucleus

  Nucleus: very small, concentrated mass of an atom. Contains protons and neutrons.

  Positive center. Negative cloud around nucleus.

Democritus

• Atoms= smallest identifiable unit of an element, philosopher who discovered "atomos" and the atom

• Demonstrated nucleus mass also contained neutrons

• Atoms contain electrons

  Large positive charge and small negative charge spread throughout spherical space.

  Cathode Ray Experiment( charge-mass ration)

• Discovered radioactive

  Radioactivity: The emission of tiny, invisible particles from the nucleus of certain atoms

• Invented Nuclear Theory: Atoms contain a nucleus

  Nucleus: very small, concentrated mass of an atom. Contains protons and neutrons.

  Positive center. Negative cloud around nucleus.

Who invented Plum Model?

• J.J. Thomson

• James Chadwick

• John Dalton

• Marie Curie

• Ernest Rutherford

Who created the Law of Atomic Conservation of Mass?

• J.J. Thomson

• Antwone Lavasiate

• John Dalton

• Marie Curie

• Ernest Rutherford

Who came up with the atomic structure

• J.J. Thomson

• Antwone Lavasiate

• John Dalton

• Marie Curie

• Ernest Rutherford