Module 2 - Definitions Flashcards
What is the definition for Relative atomic mass?
The average mass of an atom of an element compared to 1/12 the mass of an atom of carbon-12.
What is the definition for Relative isotopic mass?
The mass of an isotope relative to 1/12 the mass of an atom of carbon-12
What is an ionic bond?
The electrostatic force of attraction between oppositely charged ions formed by electron transfer.
What is a covalent bond?
A shared pair of electrons.
What is electronegativity?
The relative tendency of an atom in a covalent bond in a molecule to attract electrons from an atom in a covalent bond to itself.
What is a orbital?
A region of space around a nucleus which can hold up to two electrons in opposite spins.
What is the water of crystallisation?
Water molecules that form part of the crystalline structure of a compound.
What is empirical formula?
The simplest whole number ratio of each element in a compound.
Whats the definition for Weighted Mean Mass?
The average mass taking into account the relative abundances of the isotopes.
What is Avogardros constant in relation to?
Number of molecules in 12g of carbon-12.
