Matter Flashcards
Anything that has mass and occupies space.
Matter
Simplest form and is a pure chemical substance
Element
2 or more elements are chemically combined in definite proportion
Compound
2 or more substances that are not chemically combined
Mixture
Its individual identities are retained
Mixture
1 phase solution
Homogenous
2 phases which are suspension and colloids
Heterogenous
Properties of Matter
Extrinsic/ Extensive Property – dependent and Intrinsic / Intensive Property– independent
Density, specific gravity, viscosity, temperature, pressure, color, odor, velocity, refractive index
Intrinsic / Intensive Property– independent
Length, mass/weight, volume, entropy, enthalpy, electrical resistance
Extrinsic/ Extensive Property – dependent
States of Matter:
Solid, Liquid, Gas and Plasma
Most abundant state of matter and is electrically conductive
Plasma
In the shape or size/form of the substance
Physical Change
Changes in the composition of the substance
Chemical Change
Types of Chemical Reactions
Direct Union/Synthesis
Decomposition
Single Displacement
Double Displacement
Nuclear Changes of Matter
Nuclear Fission and Nuclear Fusion
It Splits
Nuclear Fission
Union
Nuclear Fusionion
Composed of nucleus, and surrounded by electrons
Atom
Uncharged
Neutron
Positive Charge
Proton
Negative Charge
Electron
How to get mass number
Proton + Neutron
Atomic number = ?
Number of Protons
Created the planetary model
Neil Bohr
Quantitative description of electronic structure
Electrons orbit in a positively charged nucleus
Planetary Model
Created the Quantum Mechanical Model
Erwin Schrodinger
Electrons move in a 3D space called ELECTRON CLOUD which represents the probable location of electron
Quantum Mechanical Model
What quantum number gives the orbital angular momentum and describes the shape of the orbital?
Azimuthal Quantum Number
Region of space in which electrons are most likely to be found.
Orbitals
Built by filling energy from lower to higher level.
Aufbau Principle
No two electrons will have the same set of quantum numbers.
Pauli Exclusion
Orbitals are filled up singly before pairing up.
Hund’s Rule
Impossible to predict the exact location and momentum of an electron
Heisenberg Uncertainty
Ability to attract electrons
Electronegativity
Energy required to remove electron in a neutral atom to make it positive
Ionization Energy
Energy released when a neutral atom gains extra electron to make it negative
Electron Affinity
Half of the distance between two nuclei
Atomic Radius
What quantum number gives the orbital angular momentum and describes the shape of the orbital?
Azimuthal Quantum Numbe
