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

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

Structure of the element or compound stays the same. Spacing increases as energy of particles increases.

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Which family of elements is most electrically conductive?

Metals

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The periodic table is organized by...

Increasing atomic number

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Draw a particle diagram of the sublimation of CO2

Compound should show two distinct atoms. Sublimation is solid --> gas. Solid is in orderly rows, gas takes up space

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Hydrogen has three isotopes. H-1 abundance: 99.98%. H-2: 0.012%. H-3: 0.008% Calcuate avg atomic mass.

To find: sum the mass of each isotope * it's abundance. (1)(0.9998) + (2)(0.00012) + (3)(0.00008) = 1.0002

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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.

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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.

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lifesaver

Give 15 points!

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seesaw

Swap points!

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rocket

Go to first place!

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lifesaver

Give 20 points!

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Which is a chemical change: boiling water, 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 two subatomic particles have an approximately equal mass?

Protons and neutrons weigh about 1 amu

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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

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True or false: Elements can be atoms OR molecules?

True. Some elements bond with themselves in nature (like O2), some elements exist as single atoms (like Ne)

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

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

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trap

No points!

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magnet

Take 25 points!

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rocket

Go to first place!

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lifesaver

Give 10 points!

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heart

Other team wins 25 points!

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star

Double points!

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shark

Other team loses 10 points!

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banana

Go to last place!

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

Homogeneous mixtures. The metals are not bonded together

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