a horizontal row is called a period.a vertical row is called a group
Hydrogen is found in group 1 row 1 of the periodic table
A period is a row of elements on the periodic table.
Ammonia is not on the periodic table since it is a compound, not an element. NH3
The horizontal rows on the periodic table are periods. Groups are the vertical columns on the periodic table.
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.
a horizontal row is called a period.a vertical row is called a group
A row in the periodic table is called a period. Columns are groups.
A row in the Periodic Table is called a period. Columns are groups.
A row in the Periodic Table is called a period. Columns are groups.
A horizontal row on the periodic table of elements is called a period.
Hydrogen is found in group 1 row 1 of the periodic table
A period is a row of elements on the periodic table.
A period is a row in the periodic table of elements.
Ammonia is not on the periodic table since it is a compound, not an element. NH3