A Dane discovered hafnium (Hafnia is Latin for Copenhagen). Take that.
yes
Isaac Newton made many discoveries in science, but did not discover any new elements.
Any bond can be destroyed.
A specific chemical element don't contain any other elements.
Oxygen and osmium are chemical elements. They begin with the letter O.
Yes, all elements have a chemical symbol. For nitrogen, it is N.
Enrico Fermi was not credited with the discovery of any chemical element.
To celebrate, he cracked open a bottle of vodka. Just kidding, actually, he didn't discover any elements, he just figured out a way to organize them according to their chemical properties. We still use his method today.
All the natural or artificial materials are formed from chemical elements, without any exception.
This is the definition of an element. The known elements are listed on the periodic table of elements.
Compound
All substances can be broken into any other substances (or elements) by chemical or physical methods.