dose anyone no the answer to these questions.
(1.) horizontal rows on the periodic table are called?
(2.) All the elements in a horizontal row have what one thing in common?
2007-05-30 14:54:00 · 4 answers · asked by Someone in gresham 1 in Science & Mathematics ➔ Chemistry
(1) periods
(2) The electrons in the outermost energy level (valence electrons) are all located in the same energy level.
2007-05-30 14:58:27 · answer #1 · answered by mrfarabaugh 6 · 0⤊ 0⤋
Each horizontal row is a period
After the initial row (H and He), the outer shell of the nth period elements starts filling up the ns orbital first.
2007-05-30 22:01:14 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
1. horizontal = period
2. they have metallic properties at the left and as you go right, the elements get less metallic
2007-05-30 21:58:54 · answer #3 · answered by kenneth D 1 · 0⤊ 0⤋
1. Periods
2. They all have the same number of atomic orbitals
2007-05-30 22:03:41 · answer #4 · answered by sports man 15 2 · 0⤊ 0⤋