Chapter 2.6 Elements: A first look at the Periodic Table

Question 1

Dimitri Mendeleev

Answer 1

Published the most successful periodic table of the elements

Question 2

Organization of the periodic table (3)

Answer 2

1. Each element has a box w/ atomic #, atomic symbol, & atomic mass; boxes lie in order of increasing atomic #
2. Boxes are arranged into a grid of periods and groups
3. The eight A groups contain the main - group elements, the ten B groups contain the transition elements

Question 3

Periods

Answer 3

horizontal rows

*elements in a period have DIFFERENT chemical properties

Question 4

Groups

Answer 4

vertical columns

*elements in a group have SIMILAR chemical properties

Question 5

Metals Characteristics

Answer 5

• (3/4) of the elements
• lower left position of the table
• shiny solids at room temp (except mercury)
• Conduct heat and electricity well
• malleable and ductile

Question 6

Position of metals on the periodic table?

Answer 6

lower left position of the table

Question 7

Nonmetals

Answer 7

• small upper-right portion of the table
• gasses and dull/brittle solids at room temperature (except bromine)
• conduct head and electricity poorly

Question 8

Position of nonmetals on the periodic table?

Answer 8

small upper-right portion of the table

Question 9

metalliods (semimetals)

Answer 9

have properties of both metals and non metals

Question 10

Group 1A

Answer 10

Alkali Metals (except Hydrogen)
*highly reactive elements

Question 11

Group 2A

Answer 11

Alkaline earth metals

*Highly reactive elements

Question 12

Group 7A

Answer 12

Highly reactive nonmetals

Question 13

Group 8A

Answer 13

Noble gasses: relatively un-reactive nonmetals

Question 14

How to name other groups?

Answer 14

Other groups are named after the 1st element in the group

ex. 6A is named the Oxygen Family