Period
The rows going across the periodic table are called periods. As you go across a row, each element increases in number of protons and electrons, which distinguishes it from other elements in the table.
a family is a column of elements a period is a row of elements
A period is a row of elements on the periodic table.
Atomic number increases by one as we move from left to right in a periodic table.
litium, and elements in the 2nd period (row) are pretty common
A horizontal row on the periodic table of elements is called a period.
An elements period is its row in the periodic table.
The rows going across the periodic table are called periods. As you go across a row, each element increases in number of protons and electrons, which distinguishes it from other elements in the table.
An elements period is its row in the Periodic Table.
An elements period is its row in the Periodic Table.
Increasing Mass
The atomic number increases by 1 as one go across a row on periodic table. The elements are arranged in order of increasing atomic number.
A period is a row of elements on the periodic table.
a family is a column of elements a period is a row of elements
groupsi
Elements in the first row of the rare earth elements of the Periodic Table are called LANTHANIDES.
Periods are the elements on the periodic table that go across, in rows. So basically going across each row is called a period