User: Elements from which two families would most likely combine with each other to create salts?Īlkali metals and alkaline-earth metals Weegy: Alkali metals and halogens would most likely combine with each other to create salts. Similarity in melting point Weegy: Similarity in properties is used to arrange the elements in columns on the periodic table. User: What criterion is used to arrange the elements in columns on the periodic table? 7th grade kids keenly observe the right angles and equate them accordingly. Y Weegy: Te (Tellurium) is a Group A element. Learn to find the unknown measure of each complementary angle with these worksheets. User: Of the elements Fe, Hg, U, Te, and Y, which is considered a Group A element? Youll notice that when this pair of angles are. Increase because additional energy levels are filled. If the measures of two angles sum up to 18 0 180circ 180, they are called supplementary angles. They don't have to be next to each other, just so long as the total is 180 degrees. For example, the angles with 120 and 60 are supplementary. Increase because electrons are gained from other atoms. Two angles are Supplementary when they add up to 180 degrees (a Straight Angle). Two angles are considered supplementary when the sum of their measures is equal to 180. User: From top to bottom in most groups of elements, atomic radii tend toĭecrease because the nuclear charge increases.ĭecrease because electrons are lost to other elements. For example, 95 and 85 are supplementary angles. The supplementary angle need not be adjacent to each other, but their sum should be equal to 180 degrees. User: Who first arranged the elements according to nuclear charge?ĭmitri Mendeleev Weegy: Dmitri Mendeleev arranged the elements according to nuclear charge. In Maths, two angles are said to be supplementary, when the angles add up to 180 degrees. Weegy: Each horizontal row of elements in the periodic table is called Period.