Pre-Test
Q&A	The Periodic Table Chemical Bonding

Instruction 1-3

Connection Among the Location in the Table, the Atomic Number, and Mass | How to Identify Metals, Semimetals, Nonmetals, and Halogens | How to Identify Alkaline Metals, Alkaline Earth Metals, and Transition Metals | Lanthanide, Actinide, Transactinide, and Transuranium Elements | Ionization Energy, Electronegativity, Relative Sizes | How Many Electrons Can Bond? | Size and Mass | Location and Quantum Electron Configuration | Summary

Alkali Metals
  http://borntoexplore.org/chemistry/alkali_metals.htm

The elements in Group 1 (also called Group IA) form a group called the Alkali Metals. Group 1 is the first column at the far left of The Periodic Table. As you should already know, the atoms in this group have only one electron in their outer shells (see lesson 6 for bonding information).

The Alkali Metals are very soft and are not found free in nature since they react readily with water. These metals are: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (sometimes spelled caesium) (Cs) and francium (Fr). They are very light in weight and very reactive, so they can’t be used to make coins or to build things.

Alkaline Earth Metals
http://www.periodic-table.org.uk/alkaline-earth-metals.htm

The elements in Group 2 (IIA) are called the Alkaline Earth Metals. They have 2 electrons in their outer shell. They have good metallic properties including conductivity, luster (shine), softness, malleability and ductility – although they are less “metallic” than the elements in Group 1.

The Alkaline Earth Metals are: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra). Magnesium and calcium are common in the Earth’s crust.

Transition Metals
 http://www.colorado.edu/physics/2000/periodic_table/transition_elements.html
Now we come to a big block of metals called the transition metals (or transition elements). They are groups 3 through 12 (sometimes labeled IIIB to VIIB, VIII, IB and IIB) on The Periodic Table.

To find them, go down to Period 4; this is the 4th row. Beginning with element 21, scandium (Sc), count 10 elements across to zinc (Zn). Then go one row down and count 10 elements across from yttrium (Y) to cadmium (Cd). Then go another row down and count 10 across from lutetium (Lu) to mercury (Hg) and down one last row to count 10 elements across from lawrencium (Lr). The metals in those four rows are the transition metals. They are hard and dense and less reactive than other metals.

Three of the most important transition metals are iron (Fe), cobalt (Co) and Nickel (Ni). These metals are the only elements known to maintain a magnetic field.

for Students, Parents and Teachers

Now let's do Practice Exercise 1-3 (top). 

Next Page:  Lanthanide, Actinide, Transactinide, and Transuranium Elements (top)