The vertical columns on the periodic table are called groups or families. Those outer electrons are also called valence electrons. 4. What do you call the horizontal sections of the periodic table? The vertical lines in modern periodic table are called-Group. Find an answer to your question “1.The vertical columns on the periodic table are called groups, how many groups are there on the periodic table? vertical columns on the periodic table are called _____ THIS SET IS OFTEN IN FOLDERS WITH... Metals, NonMetals, and Metalloids. Get an answer to your question "The vertical columns on the periodic table of elements are called periods ..." in Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions. The periodic table also has a special name for its vertical columns. they are called periods Each column is called a group. 6. The number of protons and neutrons in an atom is that atom’s mass. The elements in each group have the same number of electrons in the outer orbital. The number of protons in an atom is that element’s Atomic mass. Suggest other answer Login to Discuss/suggest the answer... Anirudh 39306 Exam: Periodic Table QUESTIONS Login … The horizontal rows ( which Mendeleev called series) are called periods and the vertical … Vertical columns on the periodic table are called Groups. midi - ...” in Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions. 8. The ability of a material to be drawn into a thin wire is called ductile. 7. Periodic table. The vertical columns are called "Groups''The horizontal columns are called "Periods"The vertical columns of the periodic table are known as groups. Horizontal rows on the periodic table are called Periods. The vertical lines in modern periodic table are called-1) Period 2) Group 3) Non-metal 4) None: 554: 14 Previous Next. A modern version, the so-called “long form” of the Periodic Table of the elements is the most convenient and widely used. A chart of all chemical elements currently known, ... horizontal rows on the periodic table are called _____ groups. 5.