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Chapter 2 and 3
| Term | Definition |
|---|---|
| Matter | anything that occupies space and mass |
| Mass | the quality of matter an object has |
| Elements | substances that cannot be broken don chemically into simpler kinds of matter |
| Atom | the simplest particle of an element that retains all of the properties of that element |
| Nucleus | the central rejoin that makes up the bulk of the mass of the atom and consistences of two kinds of subatomic particles |
| Proton | a positively charged subatomic particle |
| Atomic Number | a negatively charged subatomic particle |
| Mass Number | equal to the total number of protons and neutrons of the atom |
| Electrons | ..... |
| Orbital | a three-dimensional region around a nucleus that indicates the probable location of an electron |
| Isotopes | atoms of the same element that have a different number of neutrons |
| Compounds | made up of atoms of two or more elements in fixed proportions |
| Chemical bonds | the attractive forces that hold atoms together |
| Covenant bond | forms when two atoms share one or more pairs of electrons |
| Molecole | the simplest part of a substance that retains all of the properties of that substance and can exist in a free state |
| Ion | an atom or molecloe with an electronic charges |
| Ionic Bonds |