Measurement Matter & change
The independent variable does what throughout the experiment
Stays the same throughout the experiment.
The law of conservation of mass
mass cannot be created or destroyed
Quantum
minimum amount of energy that can be gained or lost by an atom.
Ionic bond
Metal and nonmetal; electrostatic force; holds ions together
Cation
losses an electron
T/F Does the dependent variable change as the temperature increases
False
Isotopes
same atomic number with different neutrons
Photoelectric effect
electrons called photoelectrons are emitted from a metals surface when light of a certain frequency shines on the surface.
Metallic bond
Anion
gains an electron
What is a Homogeneous mixture
Uniform throughout
Equation for weighted average
mass x abundancy
A rearrangment of atoms could be called
chemical reaction
Covalent bond
Nonmetal and Nonmetal; chemical bond that results from the sharing of valence electrons
2 types of acids
bionary; oxoacid
Distillation
Separates liquids by boiling point
3 types of radiation
alpha, beta, photon
What is electron shielding
inner electron partially shielding outer electrons from proton charge.
Allay
mixture of metals
Control variable
what the ecperiment is being compared to
Indicators of a chemical change
energy change, color change, odor change, make bubbles (gas), solid forms (precipitate)
Who made the atomic theory atoms are in everything
John Dalton
The photoelectric effect shows that light...
had properties of a particle
Characteristics of a metal
malleable, ductile, luster, conducters
Applied chemistry
directed towards a specific goal