Atoms & Water Flashcards
We study chemistry in biology because…
All living things are made of matter!
This is the study of matter.
Chemistry
This is anything that has mass and occupies space.
Matter
This is the simplest particle of matter that still retains all the properties of that substance.
Atom
This is a substance that cannot be broken down into anything simpler and contains only one type of atom.
Element
This particle is negatively charged, very small, moves fast, and is found in orbitals ( based on energy level)around the nucleus.
Electron
This particle has no charge, contributes to the mass of an atom, and is found in the nucleus.
Neutron
This particle has a positive charge, determines the atomic number, and is found in the nucleus.
Proton
This is an atom with an different number of neutrons.
Isotope
When two or more elements are combined in fixed proportions.
Compound
Compounds are held together with:
Chemical bonds
Compounds will have _________ properties from the elements that compose them.
Different
This type of chemical bond shares electrons forming molecules.
Covalent
This type of bond transfers electron in a “give & take” fashion, making ions.
Ionic
Ions are atoms with a:
Charge
This is the ability to do work.
Energy
Chemical energy in biology is called
Metabolism
Mechanical energy in biology is
Motion…muscles at work!
Electrical energy in biology is:
Neurology (nerve cells)
Thermal energy in biology is:
Heat
This state of matter has low energy, definite shape, and definite volume.
Solid
This state of matter has high energy, is free to move, so there is really no definite shape or volume.
Gas
This state of matter has moderate energy, has a definite volume, but will take the shape of its container.
Liquid