finals Flashcards
alkali metals
lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), francium (Fr)
group 1 period 2-7
alkaline earth metals
beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), radium (Ra)
group 2, period 2-7
transition metals
iron (Fe), nickel (Ni), copper (Cu), zinc (Zn), silver (Ag), gold (Au)
group 3-12
noble gases
helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), oganesson (Og)
group 18 period 1-7
nonmetals
carbon (C), nitrogen (N), oxygen (O),phosphorus (P), sulfur (S),selenium (se)
group 14-16
iron (Fe)
8,4
nickel (Ni)
10,4
copper (Cu)
11,4
zinc (Zn)
12,,4
silver (Ag)
11,5
gold (Au)
11,6
period
horizontal rows, 7
old periodic table arrangement
atomic mass
new periodic table arrangement
atomic number
generator
device that uses electromagnetic induction to convert mechanical energy to electrical energy
heterogeneous substance
substance where components are easily distinguished
si for temperature
kalvin/K
electromagnetic waves
waves created by vibrating electric charges
the majority of the periodic table
metals
homogenous substance
substance containing 2 or more components that are blended uniformly so that individual components arent visible without a microscope
balanced forces
describes the force of objects that have force of 0
potential energy
stored energy
colloid
heterogenous mixture, particles don’t settle
newtons 3rd law of motion
when one object exerts a force on a second object, the second object exerts a force on the first object that is equal in strength but in the opposite direction
newtons second law of motion
the acceleration of an object is in the same direction as the net force on the object and that the acceleration = the net force / by its mass
newtons first law of motion
an object moving at a constant velocity keeps moving at that velocity unless an unbalanced force acts on it
groups
columns, 18
kinetic energy
energy of motion
chemical change
change of one substance into a new substance
physical change
any change size, shape, or state of matter in which the identity of the substance remains the same
compound example
table salt
father of the periodic table
Mendeleev
metals form
cations
element
substance with atoms that are all alike
periodic table trend
atomic number increases as you go across the table
atomic number
number of protons in an atoms nucleus
chemical property
any characteristics of a substance that that can observed and can create a new substance
as frequency increases , wavelength _____
decreases
when you shake a rope upside down
transverse wave
when a transverse wave travels through a medium which way does the matter in the medium move
at right angles to the direction that the wave travels
not a medium
vacuum
waves not only move up and down but also
forwards and backwards
a sound wave is an example of
longitudinal wave
which waves have the highest frequency
gamma rays
what do waves transfer
energy
when a longitudinal wave travels through a medium, which way does the matter that makes up the medium move
in the same direction the wave travels
what is the wavelength of a wave traveling through a rope if the distance from one crest to the next is 1m
1m
