Describe the structure of a typical atom. Identify where each subatomic particle is located.

Evaluate the experiments that lead to the conclusion that electrons are negatively charged particles found in all matter.

List all the subsets of $\{a,b,c \}$ How many are there?

Compare and contrast Thomson's plum pudding atomic model with Rutherford's nuclear atomic model.

Identify the interval(s) on which each quadratic function is positive

$$y=x^2+2x-8$$

Analyzing Experiments a. How did the cathode-ray tube experiment lead to the conclusion that atoms contain electrons? b. How did the gold-foil experiment lead to the conclusion that the atom has a nucleus?

Compare Thomson's atomic model with Rutherford's atomic model.

A piecewise function is given. Use properties of limits to find the indicated limit, or state that the limit does not exist.

$$f ( x ) = \left\{ \begin{array} { l l } { x ^ { 2 } + 5 } & { \text { if } x < 2 } \\ { x ^ { 3 } + 1 } & { \text { if } x \geq 2 } \end{array} \right.$$

$$\lim _ { x \rightarrow 2 ^ { - } } f ( x )$$

Summarize what you have learned about subatomic particles by completing the following paragraph. Atoms have a _____ shape. The _____ of an atom is made up of _____ that have a positive charge and _____ that have no _____. The nucleus makes up _____ of the mass of an atom. Most of the area of an _____ is made up of negatively charged _____ traveling around the _____ charged nucleus. The _____ are held in place by their _____ to the positive charge of the _____. The _____ of the protons and neutrons are almost _____ to each other while the _____ of the electrons is ________.

Briefly evaluate the experiments that led to the conclusion that electrons were negatively charged particles found in all matter.

Summarize Dalton's atomic theory.

Explain each of the following in terms of Dalton’s atomic theory: a. the law of conservation of mass b. the law of definite proportions c. the law of multiple proportions

use long division to divide. 5x^3 - 21x^2 - 25x - 4 / x^2 - 5x - 1

Graph one period of each function.

$$y = - \frac { 1 } { 2 } \csc \pi x$$