Most medieval alchemists believed there were four elements: fire, earth, air, and water. Their idea of elements was a bit different from that of modern chemists.
They knew about some chemical elements, including gold, silver, copper, iron, Mercury, and sulphur, but they did not know they were elements. They discovered some elements, including bismuth, antimony, and arsenic, but they did not know they were elements either. All of these elements, and everything else in nature, they believed, was made up of varying combinations of fire, earth, air, and water.
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If you are asking why do scientists believe they existed? It is because they have found many fossilised skeletons.
I believe that its 16 elements, but that changes in high school.
scientists believe there are 118 different kinds of elements
I believe there were 55 or 56 known elements then.
Many believe that they universe is a product of a massive explosion known as the Big Bang. Many physicists believe that the four forces of gravity existed in a small ball, which then exploded due to its overwhelming density. This created hydrogen and helium, which later developed heavier elements, which created stars, then planets. This of course is extremely summarized, but that's the basics.
Sodom and Gomorrah is the first mention of homosexuality in the Bible, but it is likely that it existed before then. Many Christians would object to the idea that it has existed for "millions of years", since many Christians believe that the earth has existed for only about 6,000 to 10,000 years.
Syndication alchemists is a scam by all standards that one may look at it. There are so many complaints that have been launched by numerous consumers over the years.
I believe you should be able to count those on your own.
The legendary substance sought by alchemists for eternal youth and life is called the philosopher's stone. It was believed to have the power to transmute base metals into gold and grant immortality to those who possessed it. Throughout history, many alchemists searched for the philosopher's stone but it was never discovered.
The Philosopher's Stone has never existed, it is the stone of myth sought by alchemists to turn metal into gold and give eternal life. While many alchemists in the past attempted to create it or believed that they created it, there has yet to be a way to create a Philosopher's Stone and it is not known whether it is even possible to create one.
Alcatraz existed for 28 years