Atoms and Atomic Structure Worksheet with diagrams, questions, and a crossword puzzle for learning atomic theory.

A colorful educational worksheet titled "Atoms and Atomic Structure" featuring three sections: a diagram labeling parts of an atom, multiple-choice questions about atomic theory, and a crossword puzzle on atomic structure.

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Q1. (Top to bottom, left to right) Electron, Proton, Neutron, Nucleus
Q2. c) Protons and electrons are about the same mass.
Q3. d) Democritus
Q4. a) N - K - M - O - L
Q5. c) Erwin Schrödinger describes the electron cloud in 1926.
Q6. c) Electron
Q7. a) Proton
Q8. c) Electron
Q9. d) The number of neutrons is equal to the total number of "A" and "Z".
Q10. b) electrons
Q11. d) Carbon-14 has higher atomic number than Carbon-12.
Across:
3. Cation
5. Mass number
8. Thomson
10. Electron cloud
13. Nucleus
15. Anion
Down:
1. Rutherford
2. Neutron
4. Chadwick
6. Atomic number
7. Proton
9. Democritus
11. Isotope
12. Atom
14. Element

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Atoms and Atomic Structure - Worksheet | Printable and Distance ...