Atomic Basics
The smallest part of an element that retains its chemical properties.
What is an atom?
This type of bond forms when two atoms share one pair of electrons.
What is a single bond?
In our color-coded system, red represents this element.
What is oxygen?
The chemical formula for water.
What is H₂O?
In a chemical reaction, atoms are never created or destroyed. This law describes that fact.
What is the law of conservation of mass?
A substance made of only one type of atom is called this.
What is a pure element?
This type of bond forms when two atoms share two pairs of electrons.
What is a double bond?
In our color-coded system, black represents this element, which always forms 4 bonds.
What is carbon?
This molecule contains two hydrogen atoms and one oxygen atom.
What is water?
When bonds are formed, energy is released or absorbed?
What is released?
This type of molecule contains only one atom.
What is a monatomic molecule?
This type of bond forms when two atoms share three pairs of electrons.
What is a triple bond?
In our color-coded system, nitrogen is this color and usually forms three bonds.
What is blue?
The chemical formula for methane, which contains one carbon and four hydrogen atoms.
What is CH₄?
Breaking bonds in molecules during a reaction does this to energy.
What is absorbs energy?
A molecule made of two atoms of the same element is called this. Oxygen gas (O₂) is an example.
What is a diatomic molecule?
A bond that forms when electrons are transferred from one atom to another is called this.
What is an ionic bond?
Hydrogen is colored this and can only form this many bonds.
What is white; one bond?
A molecule that contains two nitrogen atoms bonded together is this.
What is N₂?
Rearranging atoms in a molecule without adding or removing any demonstrates this principle.
What is conservation of atoms?
A molecule made of more than two atoms bonded together is called this.
What is a polyatomic molecule?
Most molecular compounds, like water (H₂O), are held together by this type of bond.
What is a covalent bond?
The correct number of bonds carbon forms in a molecule.
What is four?
A common polyatomic ion made of one sulfur atom and four oxygen atoms is called this.
What is sulfate (SO₄²⁻)?
In a chemical reaction, the total number of atoms before the reaction compared to after the reaction is…
The same / conserved.