Module 2

Cards (15)

What is the conversion between one atmosphere and pascals?
101325 pascals
What is an empirical formula?
the simplest whole number ratio of atoms of each element present in a compound
What is a molecular formula?
the actual number of atoms in each element in a molecule
What is a crystal lattice?
A repeating pattern of atoms or ions in a solid.
what is an atom?
The smallest particle that defines an element
What is a molecule?
A substance formed from two or more elements chemically bonded together
What is an element?
A substance consisting of only one type of atom
what is an isotope?
Atoms of the same element with different number of neutrons and different masses
what is the atomic number?
The number of protons and electrons in an atom's nucleus.
What is the mass number?
The total number of protons and neutrons in an atom's nucleus.
what is the relative isotopic mass?
The relative isotopic mass is the mass of an atom of an element relative to one twelfth of the mass of an atom of carbon-12.
What is the relative atomic mass?
The weighted average mass of an element's isotopes.
What is the relative molecular mass?
The sum of the atomic masses of all the atoms in a molecule.
What is the relative formula mass?
The sum of the atomic masses of all the atoms in a chemical formula.
which isotope is used as the standard for comparison in the measurement of relative masses?
Carbon-12