Matter Flashcards
(49 cards)
What is mass
Amount of matter an object has
What is weight
Effect of gravity on the object
What is matter
A bunch of particles that make up something. The something is made of atoms
What do atoms contain
Energy and also are in constant motion
Contain protons, neutrons, electrons.
What happens with more energy
The more movement with particles. The more particles collide
What do faster particles move?
More energy
Solid
Particles have definite shape and occupy definite volume.
Liquid
Takes shape of container, occupies similar volume
Gas
Takes shape of container, volume depends on size of the container
Can everything be a solid liquid or gas
Yes, just needs right conditions
Freezing point
Temperature where liquids turn to solids
Boiling point
Temperature where liquid turns to gas
Condensation
Temperature where gas turns to liquid
Sublimation
Temperature where solid turns to gas
Kinetic molecular theory
All matter is made from small particles All mater contains energy Kinetic energy is energy of motion Helps explain the states of matter More energy the bigger an object Most objects go to a smaller size as it changes forms Water is the exception
Where are protons and neutrons found
Nucleus of an atom
What are the two main parts an atom is made of
Nucleus and electrons
Electrons circle nucleus
What do orbitals have
3D structure and thickness
What are the characteristics of an atom
Protons and neutrons are in nucleus of atom
Atomic mass unit weighs them (AMU)
Electrical charge
Are electrons comparable to protons
No
What is this the electrical charges of protons, electrons,and neutrons
Proton: +1 charge
Electron: -1 charge
Neutron: 0 charge
What does the number of protons do to an element
Defines it. No element has the same amount of protons as another element.
What does an equal number of protons and electrons mean
Neutral I terms of an electric charge
What is an atomic number
Amount of protons/electrons in an element
