Chemistry: Lab Skills, Lab quiz: Flame test
What is Flammable?
Having a low flash point
What is trough?
Lowest point of a wave
What are MSDS?
MSDS (Material safety data sheets) provides important information about hazards in work place and what to do if a person is harmed by a hazard.
What is a combustion reaction?
Methane as the fuel Methane + oxygen --> carbon dioxide + water
What is the Pauli Exclusion Principle?
No two electrons in an atom can have the same four quantum numbers
Energy levels that are further from the nucleus can....
more electrons than those that are closer
What are quantum leaps?
"jump" from one orbit to another when an atom absorbs or releases energy.
Different sublevels hold electrons with
Different amounts of energy
Spin
Direction in which the electron spins (on its axis)
Electromagnetic waves with a higher frequency carry more energy.....
Frequency is directly proportional to energy
What is evidence of combustion?
Heat and light energy
What produces the color in fireworks?
Metalic solts
Who is Niels Bohr?
Scientist who created the model version of the atom.
elements that produce similar colors have very different
Spectra
What happens when colored light splits?
The individual colors that make it up are visible
What is ground state?
The lowest energy state of an atom (stable)
What is a balance used for?
Used to measure mass (grams or g)
What does spectrum mean?
range
electromagnetic energy
A form of energy that travels through space as waves
What is qualitative analysis?
A lab test used to identify a substance
What is Electron pair?
A set of two electrons with opposite spins occupying the same orbital
What is white light?
All wavelengths of visible light
What is spectroscopy?
Allows us to see the bright-line spectrum of that light
What is AAA?
Always Add Acid
Every electron in an atom has a unique
Amount of energy
What is orbitals?
An atom's electrons move randomly around the nucleus in regions
What is speed of light?
Constat; 3.00 x 10^8 m/s
All sublevels overlap to fill the
Electron cloud
What is Angular Momentum?
Electron's sublevel
Size of each orbit depends on......
Energy
Principal
Energy level where the electron is located
What is the electron cloud divided into?
Energy levels
What is amplitude?
Height of a wave
What is crest?
Highest point of a wave
What is a continous spectrum?
Light at all wavelengths
Magnetic
Orbital within the sublevel
What is emission spectrum?
Partial spectrum of visible light (with some wavelengths and colors present)
All orbitals in the same sublevel hold electrons with the
Same energy
Quantum Numbers
Set of numbers used to completely describe an electron
What are energy levels divided into?
Sublevels
What is combustible?
The ability to burn
What is tare?
To find the mass of an object IN a container by decreasing the mass
electromagnetic radiation that travels on short waves carries energy....
Wavelength is inversely proportional to energy
What is subgraduates?
What is not numbered
What is gradutes?
What is the numbered on the cyclinder
What is excited state?
atom's electrons are in higher-than-normal energy orbits (unstable)
What is wavelength?
distance from crest to crest of a wave
What is the fire triangle?
oxygen, fuel, heat
quantum mechanical model
the modern description of the behavior of electrons in atoms
What is frequency?
the number of waves that pass a given point per second