Moles and Molar Mass & Mass Spectroscopy of elements
The reason that moles are used
What particles being unable to be counted or measured directly.
A combination of multiple pure substances that has variable compositions
What is a mixture?
The composition of the nucleus
What are neutrons and protrons?
The outermost electrons
What are valance electrons?
The energy change when atoms gain an electron to form a negatively charged ion
What is Electron affinity?
The number of things in one mole of a substance
What is 6.02*10^23?
It contains two different elements in the form of a compound
What is a mixture
The structure of an atom
What is a positively charged nucleus surrounded by electrons?
The experimental technique used to determine the relative energies of electrons in atoms or ions
What is photoelectron spectroscopy?
Determines the likelihood of two elements forming a chemical bond
What do interactions between valence electrons do?
What is mass spectroscopy?
The process of finding the relative mass of one or more elements in a mixture
What is elemental analysis?
The result of larger charge in Coulomb's Law
What is a larger force?
Has weaker attraction and smaller electronegativity
What is larger atomic radii?
Form analogous compounds
What do elements in the came column do?
The label on the x axis of a MS graph
The label on the y axis of a MS graph
What is mass?
What is % abundance?
The way (equation) to find mass per element
What is #of atoms*atomic mass?
The result of larger distance in Coulomb's Law
What is a smaller force?
The principle that states that electrons must fill lower energy levels first
What is the Aufbau Principle?
An atom that finds it easier to gain electrons and has a stronger attraction to valence electrons
The way (equation) to find average atomic mass on a MS graph
What is (Isotope 1*relative abundance)*(Isotope n*relative abundance) = Average Atomic Mass?
The elements present and the ration of these elements' atoms is the same for every sample of the compound
What is the reason all pure substances have a fixed composition?
The energy it takes to remove an electron far from the nucleus.
What is a large ionization energy?
The trends down the periodic table
What are increasing radius, decreasing IE, decreasing electronegativity, and decreasing AE?
The things that determine the typical charges of atoms in ionic compounds.
What is location on the periodic table and number of valance electrons?