Unit 2 - Atomic Structure

AVHS Chemistry UNIT 2 LEARNING OBJECTIVES

Chapter 4,5 & 25 Learning Objectives

Vocabulary CH 4/5:

proton neutron electron nucleus

orbital atom atomic mass atomic number

mass number isotope atomic mass unit (amu)

wavelength frequency quantum

quantum mechanical model electromagnetic spectrum

Vocabulary CH 25:

alpha particle beta particle decay fission

fusion gamma ray half-life radiation radioactivity

1. Subatomic particles (CH 4/5)

   1. Identify and describe the three main types of subatomic particles in terms of symbol, relative charge, location in the atom, and relative mass

   2. Explain how the atoms of different elements differ from one another

   3. Explain what makes isotopes of an element different from each other

   4. Be able to write and interpret the different nuclear symbol notations (isotope notations)

   5. Calculate the numbers of neutrons, protons, and electrons in atoms and ions

2. Atomic Structure (CH 4/5)

   1. Be able to use the quantum mechanical model to describe the structure of an atom

   2. Use the quantum mechanical model of the atom to describe the energies and positions of electrons in an atom

3. Atomic Emission (CH 4/5)

   1. Describe the relationship between the changes in electron energy in the atom and frequency of emitted light

   2. Explain how an atomic emission spectrum is produced

   3. Explain why each element has a unique atomic emission spectrum

4. Period Table (basics) (CH 4/5)

   1. Determine the number of a valence electrons in an atom based on periodic table

   2. Understand and be able to calculate average atomic mass

   3. Identify groups and periods

5. Electromagnetic Waves (CH 4/5)

   1. Describe the relationship between wavelength and frequency.

   2. Be able to compare wavelength, frequency, and energy of the EM spectrum

   3. Be able to apply the wave equation. (c = λν)

6. Fact, hypothesis, law and theory (CH 4/5)

   1. Understand the difference between fact, hypothesis, law and theory

   2. Identify information as either fact, hypothesis, law or theory

7. Nuclear Radiation (CH 25)

   1. Name and identify the three main types of radiation and their properties

   2. Be able to complete nuclear reaction equations, including alpha and beta

   3. Compare and contrast ionizing and non-ionizing radiation

   4. Explain how an unstable nucleus releases energy

   5. Understand the role of the strong nuclear force in the structure of an atom

8. Half-Life (CH 25)

   1. Understand half-life

   2. Perform half-life calculations