Basic Chemistry
The maximum number of electrons that can occupy the second energy shell of an atom.
What is 8?
The chemical name for NaCl.
What is sodium chloride?
Occurs when two substances combine to form one product.
What is a synthesis reaction?
This scientist proposed that electrons orbit the nucleus in specific energy levels.
Who is Bohr?
The group of elements known for being stretched into thin wires and being good conductors of heat.
What are metals?
When non-metals team up and share electrons to fill their outer shells.
What is covalent bonding?
This prefix means five in naming covalent compounds.
What is penta-?
These numbers are adjusted to ensure both sides of a chemical equation are equal.
What are coefficients?
Atoms follow this rule to fill their outer shell and achieve stability.
What is the "octet rule"
We live on the outer edge of the atom, forming bonds and connections with others.
What are valence electrons?
This is the smallest unit of matter that retains the properties of an element.
What is an atom?
The chemical name for the compound P2F
What is diphosphorus monofluoride?
Cations and anions swap partners to form two new compounds.
What is a double replacement reaction?
This is the name for the positively charged ion in an ionic bond.
What is a cation?
This scientist is credited with organizing the periodic table.
Who is Mendeleev?
This is the lightest subatomic particle.
What is an electron?
Molecules made of two atoms of the same element.
What are diatomic molecules?
Two elements combine to make this new chemical substance.
What is a compound?
This element is the only metal that is a liquid at room temperature.
What is mercury?
Not quite metals, not quite non-metals, but somewhere in between.
What are metalloids?
Identifies the number of protons in an atom's nucleus and defines the element.
What is the atomic number?
The formula for the compound dinitrogen tetroxide.
What is N2O4?
This law ensures that what you start with is equal to what you end with, no matter the reaction.
What is the "Law of Conservation of Mass"?
This gas makes up about 78% of Earth's atmosphere.
What is nitrogen?
We’re the group that keeps to ourselves and avoids reactions.
What are noble gases?
A give-and-take partnership between opposites that attract.
What is ionic bonds?
The chemical name for the compound CaBr2.
What is calcium bromide?
This type of reaction always involves oxygen gas and produces heat and light.
What is combustion?
This scientist discovered the electron and proposed the 'plum pudding' model of the atom.
Who is JJ Thomson?
The line that separates the metals from the nonmetals.
What is the staircase?
How tightly packed matter is within a given space.
What is density?
A charged particle made of multiple bonded atoms that acts as one unit.
What is a polyatomic ion?
The substances you start with in a chemical reaction.
What is a reactant?
This scientist's gold foil experiment revealed the dense, positively charged nucleus at the heart of the atom.
Who is Rutherford?
We’re in Group 1 and react quickly with water.
What are alkali metals?