Longest Solar Eclipse – July (2009) Time & Details

Longest Solar Eclipse – July (2009) Time & Details

The solar eclipse that will take place on Wednesday, July 22, 2009 will be a total eclipse of the Sun. It will be the longest total solar eclipse of the...
Is Calcium a Metal ? Why ?

Is Calcium a Metal ? Why ?

Calcium is a metal because it follows most of the physical properties of metals. It also forms metallic bonds with other calcium atoms, forms positively charged ions and bonds with...