2nd Period Periodic Table
Group 1: Alkali Metals
Definition: 1 valence electron, very reactive; most reactive of metals Example: sodium,potassium
Group 2: Alkaline-Earth Metals
Definition: 2 valence electrons, very reactive, but less reactive than alkali metals Example: Alkaline-earth metal, any of the six chemical elements that comprise Group 2 (IIa) of the periodic table. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
Group 2: Alkaline-Earth Metals
Definition: 2 valence electrons, very reactive, but less reactive than alkali metals Example: Berylium , Magnesium, Calcium, ect
Group 2
Definition: 2 valence electrons; outer level Example: Some examples of some elements from Group two of the Periodic Table are Beryllium, Magnesium, Calcium, and Radium.
Group 2
Definition: 2 valence electrons; outer level Example: barium,radium
Group 2
Definition: 2 valence electrons; outer level Example: magnesium,calcium,radium,stontium
Group 13
Definition: 3 valence electrons, drop the "1" in double-digit group numbers Example: 3rd ionization energy - The energy required to remove a third electron from a doubly charged gaseous cation. For Example: Na2+(g) → Na3+(g) + e- I3 = 6913 kJ/mol
Group 13
Definition: 3 valence electrons, drop the "1" in double-digit group numbers Example: Aluminum
Group 17: Halogens
Definition: nonmetals, 7 valence electrons Example: Flourine
Group 17: Halogens
Definition: nonmetals, 7 valence electrons Example: fluorine, chlorine, bromine, iodine, astatine
Helium
Definition: part of noble gases, group 18, special like hydrogen because so small Example: Balloons have Helium in them to make them float.
Helium
Definition: part of noble gases, group 18, special like hydrogen because so small Example: What fills balloons
Helium
Definition: part of noble gases, group 18, special like hydrogen because so small Example: a balloon
Group 3-12: Transition Metals
Definition: properties vary widely but are metallic properties Example: Gold,Iron,Silver, and Copper
Group 3-12: Transition Metals
Definition: properties vary widely but are metallic properties Example: Transition metals are just about any element in Groups 3-12 in the Periodic Table. Examples: Iron (Fe), Gold (Au), and Cobalt (Co).
Group 3-12: Transition Metals
Definition: properties vary widely but are metallic properties Example: gold, zinc,silver
Lanthanides and Actinides Series
Definition: some transition metals from Periods 6 and 7 appear in two rows at the bottom of the periodic table, top row is the lanthanide series of Period 6; elements 57 (Lanthanum) to element 71 Example: Sm,Eu
Lanthanides and Actinides Series
Definition: some transition metals from Periods 6 and 7 appear in two rows at the bottom of the periodic table, top row is the lanthanide series of Period 6; elements 57 (Lanthanum) to element 71 Example: lathanum
Lanthanides and Actinides Series
Definition: some transition metals from Periods 6 and 7 appear in two rows at the bottom of the periodic table, top row is the lanthanide series of Period 6; elements 57 (Lanthanum) to element 71 Example: the two basic lines at the periodic ... scandium and yttrium
Lanthanides and Actinides Series
Definition: some transition metals from Periods 6 and 7 appear in two rows at the bottom of the periodic table, top row is the lanthanide series of Period 6; elements 57 (Lanthanum) to element 71 Example: thorium, neodynium, uraniun, holmiun, ect
Group 18: Noble Gases
Definition: unreactive nonmetals, full outer electron orbit - 8 electrons in the outer level Example: Helium
Group 18: Noble Gases
Definition: unreactive nonmetals, full outer electron orbit - 8 electrons in the outer level Example: Noble Gases
Group 18: Noble Gases
Definition: unreactive nonmetals, full outer electron orbit - 8 electrons in the outer level Example: helium, neon, argon, krypton, xenon, radon
Hydrogen
associated with alkali metals because of only 1 valence electron; except nonmetal, so small only has 1 electron total so only one electron level, very reactive just like alkali metals
Group Number
number at the top vertical columns and tells the number of valence electrons of an atom
