Here a list with unrecorded/recorded element throughout history: http://en.wikipedia.org/wiki/Discovery_of_the_chemical_elements
Technetium (element 43) was the first element to be discovered on Earth that was not found naturally in nature. It was synthesized in a laboratory by Italian scientists in 1937.
To search, you would start with the first element of the array and compare it with the target value. If the first element matches the target, you found it. If not, you would move to the next element in the array and repeat the process until either you find the target or exhaust all elements in the array.
Hydrogen was first discovered by Henry Cavendish in 1766.
That's correct! Hydrogen is the first element on the periodic table. It is the simplest and most abundant element in the universe, commonly found in stars and gas giant planets.
Lithium-7 was found in the debris from the first H-bomb explosion, known as Ivy Mike, which took place in 1952.
Hydrogen
The element 'helium' is named after 'Helios' (the sun) as the element was first found in the sun. 25 years later is was then found on earth.
Technetium (element 43) was the first element to be discovered on Earth that was not found naturally in nature. It was synthesized in a laboratory by Italian scientists in 1937.
To search for an element in a linked list, you iterate the list, looking for the element, and either return the element or an indication that it was not found. for (ptr = first; ptr != null; ptr = ptr.next) if (ptr.value == searchvalue) break; This will either leave ptr with the address of the found element, or null, if not found.
The element is plutonium. Particulars can be found in the Wikipedia article on plutonium. A link is provided.
The first element found in the Sun's spectrum is hydrogen. Around 30 years later, the same element was identified on Earth through experiments conducted by chemists like Henry Cavendish.
Lithium was found (i.e. first chemically identified as a distinct element) in the year 1817.
Caesium is an element, it can be found in the first column of the periodic table with an atomic no. of 55 and an atomic mass of 133
The element first found in the Sun's spectrum is helium. It was discovered in 1868 by French astronomer Jules Janssen and British astronomer Joseph Norman Lockyer during a solar eclipse.
Potassium was first identified as an element is the year 1806/07.
astatine, element 85
helium