Radioactivity
Physical & Chemical Properties and Changes
Atomic Structure
Chemical Reactions
Miscellaneous
100

Name all 3 types of radiation

alpha beta gamma

100
Aluminum is pounded into thin sheets to make aluminum foil you use in cooking. This represents this physical property.
What is malleability?
100

These 2 subatomic particles exist in the nucleus

protons and neutrons

100
The name of the solution we can use to determine if something is an acid or a base

what is an indicator

100

When a chemical reaction releases energy, we say the reaction is: 

what is exothermic

200

The name of a version of an atom that has a different number of neutrons

What is an isotope

200
Mixing two clear and colourless liquids gives a bright yellow and opaque liquid, which hints at this type of change.
What is a chemical change?
200

Draw a picture of a Bohr atomic model for Helium

Answers will vary.

200

A test we can do to determine what kind of gas is present in an experiment

The pop test

200

A thermometer inside a beaker of acid + metal reacting. What happens to the temperature when this exothermic reaction takes place? 

The temperature goes up

300

which type of radiation is most dangerous in terms of penetration?

gamma

300
A gas changing to a liquid is called condensation. This process is this type of change.
What is a physical change?
300

How many electrons does Na have?

11

300

A general equation for a neutralisation reaction

acid + base --> salt + water

300

When the pH is very low (less than 7) this means the solution is (acidic/basic)

acidic

400

The missing value


171

400
Burning wood at a campfire is this type of chemical property.
What is combustibility?
400

How many neutrons does sodium-23 have?

12

400

a general equation showing a metal and an acid reacting

acid + metal --> metal salt + hydrogen gas

400

pH measures the concentration of hydrogen ions in solution. A large concentration of hydrogen ions will have a (high/low) pH

low

500

an equation to show Uranium 238 emitting an alpha particle and gamma radiation

various answers

500
This is the technical term of a solid that forms during a chemical change.
What is a precipitate?
500

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The name of the scientist who described a thought experiment where a cat can be both dead and alive if we cannot make an observation of its physical state

Who is Schrodinger

500

A general equation for a carbonate and an acid

acid + carbonate --> salt + water + carbon dioxide
500

The law of conservation of mass

Mass is neither created nor destroyed in chemical reactions.