Vocablulary

Question 0

Period

Answer 0

Each row in the table of elements organized in increasing atomic number

Question 1

Periodic Table

Answer 1

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

Question 2

Group

Answer 2

Each column in the periodic table

Question 3

Periodic Law

Answer 3

A pattern of repeating properties, such as how members of a group in the periodic table have similar properties

Question 4

Atomic Mass Unit

Answer 4

A convenient way to compare the masses of atoms where scientist choose one isotope to serve as a standard

Question 5

Metals

Answer 5

Good conductors of electric current and heat

Question 6

Transition Metals

Answer 6

Form a bridge between elements on the left and right sides of the table, among the first elements to be discovered
Form compounds with distinctive colors

Question 7

Nonmetal

Answer 7

Poor conductors of heat and electric current
Low boiling points
Brittle

Question 8

Metalloids

Answer 8

Properties in between

Conductivity varies with temp

Question 9

Valence electron

Answer 9

Electron in the highest occupied energy level of an atom, play key role in chemical reactions

Question 10

Alkali Metals

Answer 10

Group 1A
One valence
Extremely reactive

Question 11

Alkaline Earth Metals

Answer 11

Group 2A
Harder metals
Two Valence

Question 12

Halogen

Answer 12

7A
Seven valence
Despite physical differences, they have similar chemical properties

Question 13

Noble Gases

Answer 13

8A
Eight valence
No color or odor
Extremely unreactive