A period
All of the others in the same row of the Periodic Table as sodium.
Calcium, copper, and bromine are on the same row of the periodic table because they all have the same number of electron shells. They are all in the fourth row of the periodic table, which corresponds to the fourth energy level where the electrons are located.
The periodic table is only for elements while Ammonium is a compound radical or ion NH4+ it is combination of two elements nitrogen and hydrogen these two are in periodic table.
Rows of elements are typically referred to as periods in the periodic table of elements. Each period represents a horizontal row of elements that share similar properties and exhibit a trend in properties across the row.
The lanthanide elements are in a row at the bottom of the main part of most tables, this entire row being an extension of column 3 of the sixth period.
An elements period is its row in the periodic table.
An elements period is its row in the Periodic Table.
An elements period is its row in the Periodic Table.
Neon is in row 2 of the periodic table of elements.
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.
Horizontal rows are called periods. There are 7 periods in periodic table.
A row.
litium, and elements in the 2nd period (row) are pretty common
A row on the periodic table is called a period.
The third row of the periodic table contains elements with 3p electrons. Some examples of elements in this row are phosphorus, sulfur, and chlorine.
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