Periods go across the Periodic Table.
Groups go down.
Periods are the elements on the periodic table that go across, in rows. So basically going across each row is called a period
As you go down the horizontal rows, the energy levels increase.
A row of elements is known as a Period, while a column is known as a group, or family.
In the modern Periodic Table ;- #1 ; Groups are the columns down. #2 ; Periods are the lines across.
across
THEY GO ACROSS NOT UP AND DOWN. THAT IS FOR COLUMNS.
Latitude lines go -------- (across) And Longitude goes | | | (up & down)
Straight across
Periods (across the Periodic Table) have increasing Atomic Mass. Groups (down the table) have similar properties and reactive natures.
No that would be rows. Columns go down.
Horizontal is across. Vertical is up and down.
As you move from left to right on rows, or across periods and top to bottom, or down a group, the number of protons increases.
Elements in the periodic table are arranged in periods (rows) and groups (columns). Atomic number increases as you move across a row or period. The period number of an element signifies the highest unexcited energy level for an electron in that element. Elements within a group share several common properties. Groups are elements have the same outer electron arrangement. The outer electrons are called valence electrons.
Periods are the elements on the periodic table that go across, in rows. So basically going across each row is called a period
As you go down the horizontal rows, the energy levels increase.
Yes, the sun does go down in Greenland. Greenland experiences periods of darkness during the winter months when the sun sets below the horizon.
A row of elements is known as a Period, while a column is known as a group, or family.