TAKS Warm-ups. TEKS 7B  Research and describe the development of the atomic theory.

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Presentation transcript:

TAKS Warm-ups

TEKS 7B  Research and describe the development of the atomic theory

The drawing above of the J.J. Thompson atomic model differed from Rutherford’s more modern model because…. a)It has negative charges b)It has positive charges c)It does not have a nucleus d)It’s round

Guiding question: The following are questions dealing with atomic structure. The following are questions dealing with atomic structure.

GUIDING QUESTION: What is the structure of the atom?

Guiding Question: How do you find the atomic number, average atomic mass, and the quantity of each subatomic particle?

IPC 7C Identify constituents of various materials or objects such as metal salts, light sources, fireworks displays, and stars using spectral- analysis techniques.

IPC 7D Relate the chemical behavior of an element including bonding, to its placement on the periodic table

Guiding Question: What are some general characteristics of each family or group in the periodic table?

p Guiding Question: Why are noble gases considered to be stable?

Guiding Question: What is the name of the element that has three energy levels and eight electrons in the outermost shell?

dull surfaces

Guiding Question: How can you identify a metal, nonmetal and a metalloid using their properties?

Bonding and Compounds Questions

Guiding questions: Why do elements in the periodic table bond?

Guiding Question: How do you distinguish between polar and non-polar bonds?

a)Ionic b)Covalent c)Metallic d)No bond is formed

Guiding Question: What are the differences between ionic and covalent bonds?

Guiding Question: How do you determine oxidation numbers?

The oxidation number of this compound is…… a) 7- b) 1- c) 9+ d) 9-

The oxidation number of this compound is…… a) 2+ b) 6+ c) 2- d) 6-

click for more information click for more information Question: How do you write a formula using oxidation numbers? click for more information

IPC 7E Classify samples of matter from everyday life as being elements, compounds, or mixtures.

Guiding Question: How does a compound resemble the elements that comprise it?

Guiding Question: What are some examples of elements, compounds, and mixtures found in your home?