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

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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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.

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Which two subatomic particles have an approximately equal mass?

Protons and neutrons weigh about 1 amu

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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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How many valence electrons does oxygen have?

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

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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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monster

Reset all scores!

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seesaw

Swap points!

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shark

Other team loses 5 points!

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banana

Go to last place!

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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.

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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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Explain why a state of matter change is a physical change

Physical changes result in a decrease, increase, or spread of molecules. For example, when ice melts into water, the H2O molecules do not change.

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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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boom

Lose 50 points!

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rocket

Go to first place!

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gift

Win 20 points!

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thief

Give points!

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banana

Go to last place!

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star

Double points!

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shark

Other team loses 25 points!

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lifesaver

Give 25 points!

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What is another name for a homogenous mixture?

A solution

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How many protons does sulfur have?

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

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