Chemical substance can be transmuted into another element through a nuclear reaction. This is so, because all of the atoms in a sample of an element have the same number of protons, though they may be different isotopes, with differing numbers of neutrons. As of 2012, there are 118 known elements, about 80 of which are stable – that is, they do not change by radioactive decay into other elements. Some elements can occur as more than a single chemical substance (allotropes). For instance, oxygen exists as both diatomic oxygen (O) and ozone (O). The majority of elements are classified as metals.
More Than a Memory He states that since he still thinks of her, she is "more than a memory," even though he has been told by others that he will forget about her. By debuting at #1 on Hot Country Songs, "More Than a Memory" set a new record for the highest debut on that chart, beating the previous record set only one week earlier by Kenny Chesney's "Don't Blink", which debuted at #16. Its chart debut was described by "Billboard" as "almost impossible", since most #1 debuts on other singles charts (such as the "Billboard" Hot 100) are tabulated by sales, and not