Structure of Atoms
Elements
The Periodic Table
Molecules, Compounds, & Chemical Bonds
Chemical Formulas, Nomenclature, & Lewis Dot Diagrams
Polarity, Density, Solubility, other Physical Characteristics
Chemical Reactions
Student Presentations
100
The number of electrons in the first energy level.
What is 2?
100
(Without looking at the periodic table)The element that looks like this on the periodic table.
What is Cobalt?
100
The name of this group of elements.
What are the Noble Gases?
100
This creates an ionic bond.
What is giving/taking electrons?
100
This is
What is the Lewis Dot Diagram of Nitrogen?
100
When something goes straight from a solid to a gas.
What is sublimation?
100
The elements that bond with Noble Gases.
What are none?
100
The color of dye that Arsenic was used to make.
What is green?
200
The charges of protons, neutrons, and electrons.
What is positive, neutral, and negative?
200
The atomic mass of an element is equal to this.
What is the number of protons plus the number of neutrons?
200
Electronegativity moves in this direction on the periodic table.
What is from left to right?
200
A positive ion.
What is a cation?
200
Hydrogen and helium need this in their valence shell to be happy.
What are two electrons?
200
The two parts of a solution.
What are a solute and solvent?
200
Two types of chemical reactions.
What are
synthesis, decomposition, single displacement, double displacement, or combustion?
200
The energy that is stored in an object.
What is potential energy?
300
The scientist who thought all matter was made up of fire, air, earth, and water.
Who is Aristotle?
300
Example of an element with a chemical symbol that does not "match" it's name.
What is Iron (Fe), Lead (Pb), Tin (Sn), Mercury (Hg), Tungsten (W), etc?
300
The group and period number that Hydrogen is in.
What is group 2, period 1?
300
A covalent bond occurs between these two types of elements.
What are a two nonmetals?
300
In a water molecule, this element is the central atom of the Lewis Dot Diagram.
What is Oxygen?
300
Silicon is this type of element, which acts as a semiconductor.
What is a metalloid?
300
True or False: New atoms are created and destroyed in a chemical reaction.
What is false?
300
How electrons emit light.
What is the electrons jump to a higher energy level then release energy as they return to their ground state?
400
This number of electrons orbiting Potassium.
What is 19?
400
Names of two radioactive elements.
(Without looking at the periodic table)
What are Uranium, Plutonium, Radium, Polonium, etc?
400
The periodic table is full of information on these.
What are atoms that make up all matter?
400
A compound with three or more elements.
What is a polyatomic?
400
Aside from Groups 1 and 2, elements and compounds want to have this to be complete.
What are 8 electrons in their valence shell?
400
The definition of polarity.
What is the unequal sharing of electrons in a compound?
400
A decomposition reaction.
What occurs when one reactant breaks down into two or more products?
400
Dry ice is this many degrees colder than regular ice.
What is 109 degrees?
500
An energy level represents this.
What is the area in an atom where an electron will be found?
500
Atoms of the same element with different numbers of neutrons.
What are isotopes?
500
Group 17 on the periodic table (shaded area).
Hint: it means salt forming
What are Halogens?
500
The chemical name for PO43-
What is phosphate?
500
The chemical name for CCl4
What is Carbon tetrachloride?
500
The density of water.
What is 1g/ml?
500
The five main signs that a chemical reaction has taken place.
What is light, temperature change, gas production, color change, and formation of a precipitate.
500
The natural color of Neon.
What is reddish-orange.