Properties of Matter Flashcards
Are normally considered to be fairly rigid, having definite shape and volume
Solid
Solids are usually thought to be dense, but they also can be finely divided and have little density.
True or False
True
Have the same density as the solid state and have a definite volume. Assume the shape of their containers and can also flow from one point to another under the influence of a force
Liquid
Are characterized by low density and can also flow like the liquid phase and when placed in an evacuated container, it completely fills it.
Gases
Exists when the particles of matter have enough kinetic energy that at least some of their electrons become stripped away. Occurs at very high temperatures
Plasma
The basic chemical building blocks of matter are called
Elements
Was an English scientist whose atomic theory contributed to the development of a table of atomic weights and a mathematical basis for chemistry
John Dalton
Matter that is made up of small particles
Atoms
Oxygens are eight times as massive as hydrogen atoms
True or False
True
Atoms are never created, destroyed, or changed
True or False
True
The major components of an atom
Proton, Neutron, Electron
A group that consists of atoms of one element, or it may include atoms of two or or more elements
Molecules
If the atoms are of different elements the combination is called
Chemical compound
Is a charged particle consisting of a single atom or two or more atoms bonded together that have a mismatch in the total number of electrons compared to protons in their nuclei
Ion
Is an arbitrarily chosen mass defined as one unit
A relative mass unit
Is also known as the dalton (Da), especially in biochemical studies
Atomic mass unit
Is the number of particles in one mole of a substance
Avogadro’s number