Francium of the naturally occurring ones along with Promethium and Technetium which have only recently been found in trace quantities in nature
The second most common metal is Iron (Fe) for information Aluminium (Al) is first.
The most common chemical elements in the crust are oxygen (46.6%), silicon (27.7), aluminum (8.1), iron (5.0), calcium (3.6), potassium (2.8), sodium (2.6), and magnesium (2.1).Oxygen is a non-metal and silicon is a metalloid - so the most common metal is aluminum.
Aluminum is a member of the boron family and is the most abundant metal in the Earth's crust.
Oxygen is the most abundant element in the earth's crust and is not in the boron family. Aluminum is in the boron family and is the third most abundant element in the earth's crust. Refer to the related link for a list of the 10 most abundant elements in the earth's crust and their percentages.
Hydrogen is not considered a metal. It is a non-metal and is the first element on the periodic table. In its pure form, hydrogen exists as a diatomic gas and is the most abundant element in the universe.
gold
Copper is a more scarce material than most other metals.
Yes. Not only did you need Copper, which was scarce because everybody wanted it but you also needed Tin, another metal people wanted. Getting enough of both Copper and Tin was expensive but resulted in the strongest, hardest, most durable metal of the age.
When food is scarce. When food is scarce.
For some, hair becomes more scarce with age. The most basic of supplies immediately became scarce when the war broke out.
During WWII when metal was scarce. Visit ColumbusWashboard.com for further information
Education is not scarce in most parts of the world. Most governments work very hard to ensure that education is readily available and accessible for all.
yes
Water is the most scarce resource in north Africa and southwest Asia.
R5 describes the rarity of a coin, not what it is. On a scale of R1 to R10, R5 means "Scarce".
Land is, by nature, finite. However, I believe that entrepreneurship is probably the most scarce of the four factors.
Scarce resources are allocated to those who are willing and able to pay the most in a free economy.