Question

the magnitude of the chips in ice cream. the chips represent the electrons evenly distributed. discovering the nucleus: in ____ model of the atom, electrons travel around the nucleus like around the sun. rutherford experimented using __ ____ and alpha particles.

Explanation:

1. For the first blank in "Discovering the Nucleus": The Rutherford model was later, and the model where electrons orbit the nucleus like planets around the sun is the Bohr model? Wait, no, actually the solar - system (or planetary) model of the atom (also associated with Bohr, but the idea of electrons orbiting the nucleus like planets around the sun is a key part of the model. However, Rutherford's experiment led to the nuclear model, and the model with electrons orbiting like planets is often called the planetary model. But the first blank: In the Bohr (or planetary/solar - system) model? Wait, no, the first part: Rutherford's experiment was with gold foil. Wait, the second blank: Rutherford experimented using gold foil and alpha particles. The first blank: In the planetary (or Bohr, but more accurately, the model where electrons orbit the nucleus as planets around the sun is the Bohr - Rutherford model, often called the planetary model). Wait, let's correct:

• The first blank: In the planetary (or Bohr - Rutherford) model of the atom, electrons travel around the nucleus like planets around the sun.
• The second and third blanks: Rutherford experimented using gold foil and alpha particles.
• For the diagram on the left (the green sphere with electrons), that's the plum - pudding model (by J.J. Thomson), where electrons are embedded in a positive "soup" (the green sphere represents the positive charge, and the blue dots are electrons). So the left diagram labels: top - "Positive charge (or pudding part)" and bottom - "Electrons (or chips)".
• For the right diagram (nucleus with electrons orbiting), the labels: the central green sphere is the nucleus, the orbiting electrons are electrons, and the space around is the empty space (or electron cloud region, but in the planetary model, it's the region where electrons orbit).

Answer:

• First blank (in "Discovering the Nucleus"): Planetary (or Bohr - Rutherford)
• Second and third blanks: gold foil
• Left diagram (top): Positive charge (plum - pudding model's positive part)
• Left diagram (bottom): Electrons (plum - pudding model's electrons)
• Right diagram (central): Nucleus
• Right diagram (orbiting): Electrons
• Right diagram (space): Empty space (or electron - orbiting region)