The Earth's crust consists of the following elements and percentages: Oxygen--47% Silicon--28% Aluminum--8% Iron--5% Calcium--4% Sodium--3% Potassium--3% Magnesium--2% Titanium--0.5% All...
Ninety-two elements occur naturally. They are any elements with an atomic number of 94 or less, excluding technetium (43) and promethium (61).
There are 3 stable isotopes of magnesium. Magnesium- 24,25 and 26.
yes. eg carbon 14 uranium 238 etc