| Term | Definition |
|---|---|
| Matter | anything that takes up space |
| mass | the materiel that matter is made up |
| volume | how much space matter takes up |
| denstity | the amount of stuff takes up within a specific space |
| atom | smallest part of an element, the building block matter |
| electron | a subatomic particle, symbol e? or B?, with a negative elementary electric charge. |
| proton | particle of an atoms that positive charge located in the nucleus |
| neutron | particle of an atom located in the nucleus with a neutral or no change |
| periodic table | a large grid that identifies and classify all of the elements on the chart by their chemical and physical and chemical properties |
| element | the simplest substance that cant be broken down into pieces |
| periods/rows | rows that tell how many energy levels each elements has for the electrons move around |
| groups of family/columns | columns that tell how many valence electrons each element has |
| valence electrons | the electrons that move on the outer shell |
| atomic number | how many protons an element has inside the nucleus |
| atomic mass | the measurement of the mass for elements atoms |
| chemical property | the ability of a substance to mix with one another forming new and different compounds and molecules |
| physical property | A physical property is any property that is measurable, whose value describes a state of a physical system. |
| ionic bond | In other words, an ionic bond is the electrostatic force of attraction between two oppositely charged ions. |
| covalent bond | A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. |
| chemical change | Chemical change is any change that results in the formation of new chemical substances. |
| compound | A compound is a molecule made of atoms from different elements. |
| mixture | two substance mixed together. |
| compound | A compound is a molecule made of atoms from different elements. |
| halogens | any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table. |
| alkali metals | Alkali metals are the chemical elements found in Group 1 of the periodic table. |
| metalloids | an element whose properties are intermediate between those of metals and solid nonmetals. |
