Term
|
Definition
| The average mass of all the isotopes of an element. |
|
|
Term
|
Definition
| An arrangement of the elements showing the repeating pattern of their properties. |
|
|
Term
|
Definition
| A one- or two-letter abbreviation for an element. |
|
|
Term
|
Definition
| A horizontal row of elements in the periodic table. |
|
|
Term
|
Definition
| Elements in the same vertical column of the periodic table; also called family. |
|
|
Term
|
Definition
| A drawing or image of an actual thing. |
|
|
Term
|
Definition
| Any substance that cannot be decomposed into simpler substances by ordinary chemical processes. |
|
|
Term
|
Definition
| A feature or quality belonging typically to a person, place, or thing and serving to identify it. |
|
|
Term
|
Definition
| The Russian chemist, he invented the periodic table. |
|
|
