Atomic structure demo 02
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The document discusses the structure of atoms. It introduces subatomic particles like protons, neutrons, and electrons. It explains that atoms are composed of these particles, with protons and neutrons located in the nucleus at the center, and electrons surrounding the nucleus. The number of protons determines the element, while the total of protons and neutrons is the mass number. The document provides examples of atomic numbers and mass numbers for different elements.
Atomic structure demo 02
- 1. Structure of the Atom Lesson 1
- 2. Can an atom be broken into smaller parts? Focus Question
- 4. element: substance with atoms that are all alike Review Vocabulary
- 5. • An atom is the smallest particle of an element that retains the element’s properties. • Atoms are composed of even smaller particles— subatomic particles—called protons, neutrons, and electrons. Subatomic Particles
- 7. The small, positively-charged center of the atom is called the nucleus. The nucleus contains protons and neutrons. • Protons are particles with an electric charge of 1+. The number of protons in the nucleus is unique for each element. • Neutrons are electrically neutral particles in the nucleus; they do not have a charge. • Electrons are particles with an electric charge of 1−. They occupy the space surrounding the nucleus of an atom. Subatomic Particles
- 8. quark D neutron C electron B proton A Which is NOT found in the nucleus of an atom? 1. CORRECT Quiz
- 9. electrons and quarks D quarks and neutrons C electrons and protons A protons and neutrons B Which subatomic particles have equal and opposite charges? 3. CORRECT Quiz
- 11. Element Atomic Number Protons Neutrons Mass Number Boron 5 5 6 11 Copper 29 29 34 63 • The number of protons in an atom’s nucleus is equal to its atomic number. • The mass number of an atom is the sum of the number of protons and the number of neutrons in the nucleus of the atom. Atomic Mass
- 12. 16 D 15 C 7 A 8 B How many neutrons does an atom of oxygen-15 have? 3. CORRECT Quiz
- 13. Let’s play
- 15. ( ) Protons ( ) Neutrons ( ) Electrons Atomic number ( ) Mass number ( ) Total Charge ( ) Neutral atom ( ) Ion ( ) ___ ___ Li ____