Chapter 5 Vocab Flashcards Preview

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Flashcards in Chapter 5 Vocab Deck (14):
1

Period

a name for a row in the table of elements

2

Groups

each column on the table of elements

3

Periodic Law

the pattern of repeating properties

4

Atomic Mass Unit

defined as one twelfth the mass of carbon-12 atom

5

Metals

elements that are good conductors of electric current and heat

6

Transitional Metals

elements that form bridge between the elements on left and right sides of table

7

Nonmetals

elements that are poor conductors of heat and electric current

8

Metalloids

elements with properties that fall between metals and nonmetals

9

Valence Electron

electron that is in the highest occupied energy level of an atom

10

Alkaline Metals

elements in group 1A

11

Alkaline Earth Metals

elements in group 2A

12

Halogens

elements in group 7A

13

Noble Gases

elements in group 8A

14

Periodic Table

arrangement of elements in columns, based on a set of properties that repeat from row to row