its called a period.
A horizontal row on the periodic table of elements is called a period.
The horizontal rows are periods on periodic table. There are 7 horizontal rows in modern periodic table.
rows. the vertical columns are called periods
Horizontal rows on the periodic table are called periods. Each period represents the number of energy levels or electron shells that an atom's valence electrons occupy. Moving from left to right across a period, the number of protons and electrons increases.
The horizontal rows in the periodic table are called periods
A horizontal row on the periodic table of elements is called a period.
The horizontal rows on the periodic table are called periods.
The horizontal sections of the periodic table are called periods.
Yes. the horizontal rows on the periodic table are called periods.
The horizontal rows are periods on periodic table. There are 7 horizontal rows in modern periodic table.
The horizontal rows are referred as periods. There are 7 periods in periodic table.
rows. the vertical columns are called periods
The Horizontal row on the table is called a period
The 7 horizontal rows in the periodic table are called periods.
Horizontal rows on the periodic table are called periods. Each period represents the number of energy levels or electron shells that an atom's valence electrons occupy. Moving from left to right across a period, the number of protons and electrons increases.
The horizontal row is called period.
The horizontal rows in the periodic table are called periods