DAY-1-FIRST-DAY-HIGH

Welcome Message

  • Welcome future chemists! Enjoy the journey!

University Vision and Mission

Vision

  • Leading university in advancing scholarly innovation, multicultural convergence, and responsive public service in a borderless region.

Mission

  • Provide advanced instruction and professional training in:

    • Science and Technology

    • Agriculture

    • Fisheries

    • Education

  • Undertake research and provide progressive leadership in specialization areas.

University Goals and Objectives

Goal

  • Produce graduates with excellence and dignity in arts, science, and technology.

Objectives

  1. Enhance:

    • Competency development

    • Commitment

    • Professionalism

    • Unity

    • True spirit of service

  2. Provide relevant programs and training responding to regional development needs.

  3. Strengthen collaborations and partnerships for borderless programs.

  4. Develop a research culture among faculty and students.

  5. Promote environmentally sound and market-driven knowledge and technologies.

  6. Support sustainable development through research-based information.

  7. Enhance resource generation and mobilization for financial viability.

Class Introduction

K-W-L Chart

  • What I Know (K)

  • What I Want to Know (W)

  • What I Learned (L)

Classroom Requirements

  • Attendance/Attitude

  • Quizzes

  • Assignments/Follow-ups

  • Activity Worksheets

  • Laboratory Experiments / Lab Activity

  • 100% Participation/Cooperation/Recitation

  • Midterm Exam

  • Final Exam

  • Brochure/PPT/Videos

House Rules

  • No cell phones during discussions; no cheating or chatting.

  • Raise hand for questions.

  • Maintain polite communication and honesty.

Review Topics

Matter Classification

  • Can matter be separated into more than one substance by physical means?

    • Yes: Mixture

    • No: Pure Substance

      • Can it be decomposed?

        • Yes: Compound

        • No: Element

Types of Mixtures

  • Is the mixture homogeneous?

    • Yes: Solution

    • No: Heterogeneous Mixture

      • Do particles settle at the bottom?

        • Yes: Suspension

        • No: Colloid

Understanding Atoms

Atomic Structure

  • Atoms consist of:

    • Nucleus: Contains protons and neutrons.

    • Electrons: Negatively charged outside the nucleus.

Definitions

  • Atom: Smallest unit of an element.

  • Nucleus: Central part of an atom, contains most of its mass.

  • Proton: Positively charged particle within the nucleus.

  • Neutron: Neutral particle within the nucleus.

  • Electron: Negatively charged particle surrounding the nucleus.

History of Atomic Theory

Early Concepts

  • Ancient Greeks proposed matter consisted of fundamental particles (atoms).

  • Alchemists aimed to transmute elements.

Greek Philosophers

  • Democritus: Proposed atoms are indivisible.

  • Aristotle: Favored continuous theory of matter (4 elements).

Modern Advances

  • Robert Boyle: Defined elements based on their inability to be decomposed.

  • John Dalton:

    • Proposed atomic theory about indivisible atoms and compound formation.

    • Discussed properties of mass and chemical change.

Discovery of Subatomic Particles

  • J.J. Thomson: Discovered electrons (plum pudding model).

  • Ernest Rutherford: Gold foil experiment showed atom structure with a nucleus.

  • James Chadwick: Discovered neutrons.

Development of the Periodic Table

Key Contributors

  • Dmitri Mendeleev: Created the first periodic table based on element properties.

  • Modern Periodic Table: Arranged by atomic number due to advancements in understanding nuclear charge.

Summary

  • Understanding atomic theory has evolved through various models and discoveries.

  • Atoms are composed of subatomic particles, and the structure of matter can be classified based on physical and chemical properties.