Slide 2 Slide 1 of 28 Classifying the Elements 6.2 Section 6.2-2
Classifying the Elements II Slide 3 Slide 2 of 28 Copyright Pearson
Prentice Hall Classifying the Elements > Alkali Metals Group
6.2-2 Alkali Metals The Alkali Metals group are the 1 st column in
on the left hand side of the periodic table. They (along with the
alkaline earth metals) occupy the s sublevel. Elements in the group
include Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb),
Cesium (Cs), and Francium (Fr). Although Hydrogen is listed shown
in this group, it is not part of the Alkali Metals as it is not a
metal. Slide 4 Slide 3 of 28 Copyright Pearson Prentice Hall
Classifying the Elements > Alkali Metals Group 6.2-2 Slide 5
Slide 4 of 28 Copyright Pearson Prentice Hall Classifying the
Elements > Alkali Metals Group Properties of Alkali Metals:
6.2-2 Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb),
Cesium (Cs), & Francium (Fr) 1 Valence Electron Becomes a +1
ion Shiny Solids Malleable & Ductile (easy to shape) Good
Conductor of Electricity Low Density Low Melting Point
(Temperature) Intense chemical reactions with air or water Not
found as element, but in a compound such as NaCl Slide 6 Slide 5 of
28 Copyright Pearson Prentice Hall Classifying the Elements >
Alkaline Earth Metals Group 6.2-2 Alkaline Earth Metals The
Alkaline Earth Metals group are the 2 nd column in on the left hand
side of the periodic table. They (along with the alkali metals)
occupy the s sublevel. Elements in this group include Beryllium
(Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba),
and Radium (Ra). Slide 7 Slide 6 of 28 Copyright Pearson Prentice
Hall Classifying the Elements > Alkaline Earth Metals Group
6.2-2 Slide 8 Slide 7 of 28 Copyright Pearson Prentice Hall
Classifying the Elements > Alkaline Earth Metals Group
Properties of Alkaline Earth Metals: 6.2-2 Beryllium (Be),
Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), &
Radium (Ra) 2 Valence Electrons Becomes a +2 ion Relatively
Malleable & Ductile (easy to shape) Relatively Good Conductor
of Electricity Relatively Low Density Relatively intense chemical
reactions with air or water Not found as element, but in a compound
such as MgCl 2 Basically, reactive, but not as reactive as Alkali
Metals. Slide 9 Slide 8 of 28 Copyright Pearson Prentice Hall
Classifying the Elements > Transition Metals Group 6.2-2
Transition Metals The Transition Metals are the recessed group of
elements located directly to the right of the Alkaline Earth
Metals. This groups occupies the d sublevel when electron shells
are being filled. Slide 10 Slide 9 of 28 Copyright Pearson Prentice
Hall Classifying the Elements > Transition Metals Group 6.2-2
Slide 11 Slide 10 of 28 Copyright Pearson Prentice Hall Classifying
the Elements > Transition Metals Group Properties of Transition
Metals: 6.2-2 Metals in d sublevel High Melting Points Vary in
Abundance Relatively High Density Some transition metals can have
more than one ionic state. Used to fight corrosion (chromium) Used
to add color to paint Cr 2 O 3 (green) PbCrO 4 (red) Used in coins
(silver, copper, gold, nickel, zinc) Sterling Silver Silver + 7.5%
copper Bronze Copper + Tin Brass Copper + Zinc Slide 12 Slide 11 of
28 Copyright Pearson Prentice Hall Classifying the Elements >
Halogen Group 6.2-2 Halogen The Halogen Group is located in the 2
nd column in on the right hand side of the periodic table. They
(along with the Nobel Gases and other nonmetals) occupy the p
sublevel. Elements in this group include Fluorine (F), Chlorine
(Cl), Bromine (Br), Iodine (I), and Astatine (At). All of these
elements are nonmetals. Slide 13 Slide 12 of 28 Copyright Pearson
Prentice Hall Classifying the Elements > Halogen Group 6.2-2
Slide 14 Slide 13 of 28 Copyright Pearson Prentice Hall Classifying
the Elements > Halogen Group Properties of Halogens: 6.2-2
Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), &
Astatine (At) 7 Valence Electrons Becomes a -1 ion Very Reactive
Poor Conductor of Electricity Exist as diatomic molecules Cl 2, I
2, Br 2 Like to react with alkali and alkaline earth metals Slide
15 Slide 14 of 28 Copyright Pearson Prentice Hall Classifying the
Elements > Nobel Gases Group 6.2-2 Noble Gas The Noble Gas or
Inert Gas Group is located in the last column in on the right hand
side of the periodic table. They (along with the halogen group
elements and other nonmetals) occupy the p sublevel. Elements in
this group include Helium (He), Neon (Ne), Argon (Ar), Krypton
(Kr), and Xenon (Xe). All of these elements are nonmetals. Slide 16
Slide 15 of 28 Copyright Pearson Prentice Hall Classifying the
Elements > Nobel Gases Group 6.2-2 Slide 17 Slide 16 of 28
Copyright Pearson Prentice Hall Classifying the Elements > Nobel
Gases Group Properties of Nobel Gases: 6.2-2 Helium (He), Neon
(Ne), Argon (Ar), Krypton (Kr), & Xenon (Xe) 8 Valence
Electrons Does not become an ion Essentially, does not react.
Helium coldest refrigerant at -269 C (remember, -273 C is absolute
zero). Argon used in light bulbs to keep the filaments from
burning. Neon gas used in signs. Helium used in lighter than air
balloons. Slide 18 The End ! ! !
