Show:
Properties
Classifying Matter
Changes
Structure of the Atom
Elements
100
This is a characteristic of a substance that can be observed or measured.
What is a physical property?
100
These are the two broadest categorizations of matter.
What are pure substances and mixtures?
100
This is a change in which the composition of the substance remains unaltered and no new substances are produced.
What is a physical change?
100
This is the smallest particle of an element that has all of the element's properties.
What is an atom?
100
The number of protons in the nucleus of an atom - used to identify an atom of a particular element.
What is the atomic number? Bonus - what is Oxygen's atomic number?
200
This is a characteristic of a substance that can only be observed when a chemical change takes place.
What is a chemical property?
200
This is a substance that cannot be broken down into any simpler substance by chemical means.
What is an element?
200
This is a change in which one or more new substances are formed.
What is a chemical change?
200
This positively charge particle is found in the nucleus of an atom.
What is a proton? Bonus - symbol
200
The number of protons plus the number of neutrons in an atom.
What is mass number? Bonus: what the mass number for the most common isotope of carbon?
300
Examples of this include boiling point, state of matter, and density.
What is a physical property?
300
These are the two types of pure substances.
What are elements and compounds?
300
Examples include folding paper and melting ice.
What is a physical change?
300
This particle is found in the nucleus of an atom and has no charge.
What is the neutron. Bonus - symbol
300
Atoms of an element that have the same number of protons but a different number of neutrons.
What are isotopes?
400
Examples of this include combustibility, reactivity with oxygen, and reactivity with water.
What is a chemical property?
400
Mixtures can be divided into these two categories
What are heterogeneous mixtures and homogeneous mixtures?
400
Examples include 1) colourless egg whites turning white when cooked 2) wood burning and leaving ashes behind 3) the smell released by rotting garbage
What is a chemical change?
400
This particle has a negative charge and is found orbiting the nucleus of an atom.
What is an electron? Bonus - symbol
400
An atom that has gained or lost an electron and is no longer neutral.
What is an ion? Bonus: where are the possible ionic charges listed in an element's box in the periodic table?
500
Matter is anything that has these two quantities.
What are mass and volume?
500
These are made up of only one kind of matter and have a unique set of physical and chemical properties.
What are pure substances?
500
A change of colour, odour, temperature, or light; a new solid being formed; or bubbles that are not caused by heating.
What is evidence that a chemical change has occurred?
500
These two subatomic particles have almost the same mass and are about 1836 times more massive than the third subatomic particle.
What are protons and neutrons?
500
The average mass of an atom of an element.
What is atomic mass? Bonus: where is atomic mass in an element's box?