There is no "row 15" in any Periodic Table I have ever seen. There is a column 15 in a wide form periodic table, which contains the stable elements nitrogen, phosphorus, arsenic, antimony, and bismuth, for a subtotal of 5, and may contain one of the very heavy and radioactive elements recently made.
An elements period is its row in the periodic table.
A period is a row in the periodic table of elements.
An elements period is its row in the Periodic Table.
An elements period is its row in the Periodic Table.
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A period is a row of elements on the periodic table.
Elements in the first row of the rare earth elements of the Periodic Table are called LANTHANIDES.
A horizontal row on the periodic table of elements is called a period.
A row.
In the Periodic Table of Elements there are: 118 Observed Elements 114 Officially Discovered Elements 112 Officially named Elements 92 Naturally Occuring Elements 83 Non-radioactive elements
A row on the periodic table is called a period.
litium, and elements in the 2nd period (row) are pretty common