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Actinides
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What is second period at the bottom of the periodic table called?
The first period is at the top of the table. It consists of hydrogen and helium. The bottom period is period 7.
The second period at the bottom of the table is called the?
The second period at the bottom of the table is called the lanthanide series or the lanthanoid series. It consists of 14 elements with atomic numbers 57 to 70 and is located below the main body of the periodic table.
What is the name of the rows of the periodic table?
The horizontal rows on the Periodic Table are called periods, while the vertical columns are called groups or families. For instance, iodine is in the same group, but different period to fluorine, chlorine and bromine.
A horizontal row of elements on the periodic table is called?
The horizontal rows of the periodic table are called Periods and the vertical rows are called groups.
Each row in period table is called what?
period
Where are lanthanides on the periodic table?
Top row, of the bottom two rows on the Periodic Table. (Period 6, starting at group 4)
A row across the periodic table is called a?
groupsi
Where is Ununoctium in the periodic table?
It is present in the Bottom right corner of the table. It is in 7th period, 18th group.
Why six period is called longest period?
The sixth period is currently known as the longest period because it has the most number of elements in it if you include the inter transition metals which are normally found in 2 columns at the bottom of a periodic table.
What is a column on a period table is called?
a column or family on the Periodic Table
What are called to the period in the periodic table?
The 7 horizontal rows in the periodic table are called periods.
What are the first three periods of the periodic table called?
The first three periods of the periodic table are called the first period, second period, and third period.
