Matter
The door is opaque. This physical property is an example of _____.
Clarity
What are the 3 subatomic particles?
Protons, neutrons, and electrons
Periods on the periodic table determine the number of ______.
Shells
Ions are atoms that _______.
Have lost or gained electrons
The particles of this state of matter have the strongest attraction to one another.
Solid
Number of neutrons = ____________________.
Atomic Mass - Atomic Number
Another name for groups of elements in the same vertical column are ______.
Families
Ionic bonds are between which types of elements?
A metal and a non-metal
What is the name for a pure substance that cannot be physically or chemically broken down any further?
Element
What do valence electrons determine?
Reactivity
Halogens have ____ valence electrons.
7
Covalent compounds _________ electrons.
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According to the particle theory of matter, what do particles do when the temperature increases?
They move faster
The nucleus of the Bohr-Rutherford diagram contains these.
Protons and Neutrons
The most reactive metals are in this category.
Alkali metals
The net charge of an ion =
protons + electrons
Burning wood is an example of what kind of change?
Chemical Change
The electrons move around the nucleus on these.
Orbits
A characteristic of this category is colourless, odourless gas.
Noble gases
Covalent compounds are represented using this type of diagram.
Lewis Dot Diagrams