Taylor dB Flashcards
Study for Science
What is melting point
The Temperature at which a solid becomes liquified
What did JJ Thompson Find out
Atoms contain negativity charged particles within the atoms nucleus
What is an Atom
The smallest particle of an element that retains the properties of that element
What is an electron
negatively charged particles surrounding the atomic nucleus
What is Physical Change
A change in matter in which the appearance many change but no chemical bonds are broken or made
Solidification
Change of state from a liquid to a solid (as known as freezing
Particles in a Solid
Compact, only vibrate and has a fixed mass
Particles in a liquid
loose but still close, slide past each other , has fixed mass and takes the shape of the container
Neutron
An uncharged particle in the atomic nucleus
Particles in a Gas
Far apart, not fixed mass or volume, fills shape of container, travel in straight lines until hits something
Ernest Ruthfords model
Solar system model - Draw it
Proton
Positively charged particle in the atomic nucleus
Daltons Atomic theory
The billiard Ball mode “mickey Mouse”
JJ Thompson
found out that Atoms contain negatively charged particles called electrons
Nucleus
The positively charged center of the atom contains protons and neutrons
Malleable
of a metal material - able to be hammered or pressed out of shape without breaking or cracking
Qualitative
Properties measured by words not numbers
Quantitative
Properties measured by numbers not words
Density
A ratio of materials mass to its volume
Conductive
Ability to conduct electricity or heat
Subatomic Particles
Particles such as protons, neutrons, electrons that are smaller than atoms
Vicosity
The state of being thick sticky and semi-fluid due to internal friction
Bohr
Found that electrons surrounded the nucleus in specific engergy levels of shells
Chemical Change
A change in matter which chemical bonds are formed and broken which produces a new substance
Boiling Point
The temperature at which liquid changes to gas
KMT
The kenetic molecular theory is a theory of motion
Hazardous Labels
4 symbols : explosive, flamable, corrosive, posonious
Dalton
Found that matter is made up of small particles called atoms
