gallion,silicon and gold
It took many years to discover these elements. Hundreds of thousands worked and arranged the Periodic Table of Elements.The basic design of the periodic table was thought up by Dmitri Mendeleev. It was his idea to arrange the elements according to atomic mass (because this gave repeating patterns of properties). Later it was discovered that atomic charge was what was really important. Eventually the gaps Mendeleev left were filled in by the discovery of more elements, so while many scientist contributed to the modern periodic table Mendeleev is considered to have invented it.
he didnt
he didnt
he didnt discover any golden bridge
No. Alexander Graham Bell invented it. The army didnt discover the telephone
because he dicovered Canada and if he didnt discover Canada there wouldn't be a Canada
Scientists in 1750 did not have access to the vast amount of experimental data on elements that Mendeleev had. The understanding of atomic theory, periodic trends, and chemical behavior was not advanced enough at that time to support the development of a table like Mendeleev's. Additionally, the technology and resources needed to collaborate and disseminate scientific information were also lacking in 1750.
He didnt simple...
he didnt discover it. he found out that they were edible.
HE DIDNT DISCOVER MATH!!! I ALREADY ANSWERED THIs
They were the first people that didnt live in texas to discover thanksgiving
Johann Wolfgang Dobereiner arranged them in triads, Alexandre-Emile Beguyer de Chancourtois arranged by atomic weight, John New-lands and William Olding published periodic tables that used atomic weight to arrange the elements into groups with analogous properties, Julius Lothar Meyer is closest to periodic table as it is today he just didnt make predictions about unknown elements like Mendeleev