0
Mendeleev found that he could arrange the 65 elements that were then known, in a grid or table so that each element had a higher atomic weight than the one on its left and similar chemical properties to other elements in the same column. In his table he noted gaps - spaces where elements should be but none had yet been discovered In fact just as Adams and LeVerrier could be said to have discovered the plant Neptune on paper, Mendeleev could be said to have discovered silicon, because he observed a gap between silicon and tin, aluminum and boron, on paper, for he predicted their existence and their properties before their actual discoveries.
What else can I help you with?
What are facts and a fib about the periodic table?
Facts about the periodic table include its organization of elements based on atomic number and chemical properties, as well as the presence of periods and groups that help classify elements. A fib about the periodic table could be that all elements within the same group have similar physical properties, which is not always the case due to variations in atomic structure and bonding tendencies.
Where are transition metals located on the periodic table?
The transition metals are located in groups 3 - 12 on the Periodic Table.
How many electrons do period 3 in periodic table have?
period 3 elements in the periodic table have 3 electrons in there outher shell hence the name.
Where is period 3 located on periodic table?
Period 3 is the 3rd horizontal row. It is the 3rd row in periodic table.
What are facts about Cadmium?
1. It is a toxic element on the periodic table 2. It is mined and refined in the U.S.A 3. It is used in objects in your house such as batterys
Where are transition metals located on the periodic table?
The transition metals are located in groups 3 - 12 on the Periodic Table.
What are facts and a fib about the periodic table?
Facts about the periodic table include its organization of elements based on atomic number and chemical properties, as well as the presence of periods and groups that help classify elements. A fib about the periodic table could be that all elements within the same group have similar physical properties, which is not always the case due to variations in atomic structure and bonding tendencies.
How many electrons do period 3 in periodic table have?
period 3 elements in the periodic table have 3 electrons in there outher shell hence the name.
Where is period 3 located on periodic table?
Period 3 is the 3rd horizontal row. It is the 3rd row in periodic table.
What are facts about Cadmium?
1. It is a toxic element on the periodic table 2. It is mined and refined in the U.S.A 3. It is used in objects in your house such as batterys
What group is yttruim in on the periodic table?
Yttrium is in group 3 on the periodic table, also known as the scandium group.
Where are transition metals located in the periodic table?
Transition metals are located in the middle area of the periodic table, specifically in groups 3 to 12. They are known for their ability to form colored compounds and for their varied oxidation states.
What period is argon in?
Argon is in the third period of the modern periodic table.
What are the groups 3-12 classified as in the periodic table?
The elements in group 3-12 are transition elements. They are placed in centre of periodic table.
What period on the periodic table does sulfur belong?
Sulfur (S, element number 16) is on the third period of the periodic table.
Region of the periodic table where most radioactive elements are found?
Group 3 of the periodic table contains many of the radioactive elements.
What element is in the halogen family in period 3 of the periodic table?
Chlorine is the element in the halogen family located in period 3 of the periodic table.
