2. Group 1: Alkali Metals Chapter 7
Section 2 Grouping the Elements
Group 1: Alkali Metals
atoms will often take, give, or share electrons with other atoms
to have a complete set of electrons in outer level
REACTIVE-Elements whose atoms undergo give/take/share processes

3. Group 1: Alkali Metals, continued
Chapter 7
Section 2 Grouping the Elements
Group 1: Alkali Metals, continued
Alkali metals are elements in Group
most reactive metals
atoms easily give away the one electron in the outer level of their atoms.
so reactive that in nature they are found only combined with other elements

4. Chapter 7
The Periodic Table

5. Group 2: Alkaline-Earth Metals
Chapter 7
Section 2 Grouping the Elements
Group 2: Alkaline-Earth Metals
Alkaline-earth metals are elements in Group 2.
less reactive than alkali metals
have two electrons in their outer level.

6. Groups 3-12: Transition Metals
Chapter 7
Section 2 Grouping the Elements
Groups 3-12: Transition Metals
Elements of Groups 3-12 are called transition metals.
less reactive than alkali metals and alkaline- earth metals.
1 or 2 electrons in the outer level
properties of the transition metals vary.
lanthanides and actinides make up two rows of transition metals
placed at the bottom of the table to save space.

7. Group 13: Boron Group Chapter 7
Section 2 Grouping the Elements
Group 13: Boron Group
3 electrons in the outer level of their atoms.
reactive.
contains one metalloid and five metals.
Aluminum is the most common element in Group 13.

8. Group 14: Carbon Group Chapter 7
Section 2 Grouping the Elements
Group 14: Carbon Group
4 electrons in the outer level of their atoms.
reactivity varies.
contains metals, nonmetals, and metalloids.
Diamond and soot are both natural forms of the nonmetal carbon.

9. Group 15: Nitrogen Group Chapter 7
Section 2 Grouping the Elements
Group 15: Nitrogen Group
5 electrons in the outer level of their atoms.
reactivity varies.
contains metals, nonmetals, and metalloids.

10. Group 16: Oxygen Group Chapter 7
Section 2 Grouping the Elements
Group 16: Oxygen Group
The elements in Group 16 have 6 electrons in the outer level of their atoms. These elements are reactive.
Group 16 contains metals, nonmetals, and metalloids.

11. Group 17: Halogens Chapter 7
Section 2 Grouping the Elements
Group 17: Halogens
7 electrons in the outer level of their atoms.
very reactive because their atoms need to gain only one electron to have a complete outer level.
All halogens are nonmetals.

12. Chapter 7
The Periodic Table

13. Group 18: Noble Gases Chapter 7
Section 2 Grouping the Elements
Group 18: Noble Gases
The elements in Group 18 are called noble gases. Atoms of noble gases have a full set of electrons in their outer level.
Noble gases are unreactive. These elements were first called inert gases.
All noble gases are nonmetals.

14. Chapter 7
Section 2 Grouping the Elements
Hydrogen
The properties of hydrogen do not match the properties of any single group, so hydrogen is set apart in the table.
Hydrogen has one electron in the outer level of its atoms. Hydrogen is reactive.
Hydrogen is the most abundant element in the universe.

15. Locating ELEMENTS on the table
You will be making and trading an “element card”
On an index card, write clues that would lead someone to your element EX
“Ni + 3 protons”
2nd alkali metal from the bottom
Noble gas that superman can be around