groups Flashcards
(33 cards)
Lightest Element of all
Hydrogen
Has a class of its own
Hydrogen
What is Hydrogen Vastly used in
Airships and Balloons
What is the cause of airship disasters in Hydrogen
Its high flammability
Found in the first column of the periodic table
Alkali Metals
They are shiny, have the consistency of clay, and are easily cut with a knife
Alkali Metals
The most reactive metals
Alkali Metals
What do Alkali Metals react violently to
Water
Alkali metals are never found as ______ elements in nature.
free
They are gray in color, moderately hard, and has high melting point
Alkaline Earth Metals
Good conductors of heat and electricity
Alkaline Earth Metals
The compounds are usually brightly colored and are often used to color paints
Transition Metals
They are usually hard and tough.
Transition Metals
Transition Metals have high melting points - but ________ is a liquid at room temperature
Mercury
often used in industry as catalysts for various reactions because of the their unique qualities
transition metals
2 series of Rare Earth Elements
The LANTHANIDE and ACTINIDE series
This series of rare earth elements are usually magnetic
LANTHANIDE
This series of rare earth elements are mostly reactive elements. They can be useful as atomic nuclei weapons.
ACTINIDE
How many rare earth elements are there
30
This family includes the most abundant metal in the earth’s crust
Boron Family
What is the most abundant metal in the earth’s crust?
Aluminum
What is the only metalloid in the Boron Family?
Boron
What element is the “basis of life”
Carbon
This group contains some most useful elements in technology (e.g Tin and Lead)
Carbon Family
