Unit 1 Review: Matter, Atoms, and the Periodic Table | Baamboozle - Baamboozle

English 22 Public

Atoms, Elements, Compounds, Mixtures, Physical and Chemical Changes, Isotopes, Reading the Periodic Table, Properties of Families

Study Slideshow

How many energy levels does phosphorus have?

Phosphorous (P) is in period 3, so it has 3 energy levels

10

How many valence electrons does oxygen have?

Oxygen (O) is in group 16, so it has 6 valence electrons

10

How many protons does sulfur have?

Sulfur's atomic number is 16, so it has 16 protons

10

How many electrons does a neutral atom of calcium have?

Calcium's atomic number is 20, so it has 20 protons. A neutral atom has the same number of protons and electrons, so 20.

15

Why does argon not react with other elements?

Ar is a noble gas. Noble gasses have a full valence shell, so they are energetically stable

20

Which family of elements is most electrically conductive?

Metals

15

Which element is brittle at room temp: Potassium, Calcium, Sulfur, Gold, Aluminum

Sulfur, because it is a nonmetal. We saw this in the metals, nonmetals, metalloids lab.

15

What is another name for a homogenous mixture?

A solution

10

Metal alloys are... elements, compounds, homogenous mixtures, or heterogenous mixtures?

Homogeneous mixtures. The metals are not bonded together

15

Which two subatomic particles have an approximately equal mass?

Protons and neutrons weigh about 1 amu

15

Draw a particle diagram of a liquid solution

Solutions are homogeneous mixtures. Should have two compounds/elements. Molecules flow but at bottom of container.

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In a physical change, what happens to the organization of the atoms?

Structure of the element or compound stays the same.

15

In a chemical change, what happens to the organization of the atoms?

Chemical bonds between atoms are broken and new bonds form. Atoms rearrange.

15

Which is a chemical change: boiling water, mix dye + water, rust, paint chipping

Rust is a chemical change. The color changes and you need a chemical process to reverse it.

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Which is a chemical change: chopping wood, leaves changing color, increasing temp of solution, distilling gasoline

Leaves changing color. The chlorophyll molecules break down into component elements.

15

List 3 signs of a chemical change

Heat, light, color change (usually), bubbles, new substance

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Unit 1 Review: Matter, Atoms, and the Periodic T ...