Chapter 3 Flashcards
What is a compound?
Elements combined in fixed, definite proportions.
What is a Chemical Bond?
An attraction between charged particles (electrons + protons) that compose atoms.
What is an ionic bond?
A transfer of electrons from one atom to another.
What is a covalent bond?
Is between two or more nonmetals, sharing of electrons between two atoms.
What is an ionic bond?
Oppositely charged ions attracted to form a chemical compound.
What is an ionic compound?
A chemical compound composed of ions.
What is a covalent bond?
Is a chemical bond that involves sharing electron pairs between atoms.
What is a chemical formula?
It indicates elements present in a compound and the relative number of atoms or ions in each element.
What is an empirical formula?
It gives the relative number of atoms of each element in a compound.
What is a molecular formula?
It gives the actual number of atoms of each element in a molecule of a compound.
What is a structural formula?
It is lines that represent covalent bonds, shows how atoms in a molecule bond.
What is a atomic element?
In nature, with single atoms as their base.
What’s is a molecular element?
Not found in nature, has at least two atoms of the same chemical element bonded to each other.
What is the formula unit?
Is the basic unit of the ionic compound.
What is the polyatomic ion?
Is an ion composed of two or more atoms.
