Chemistry
Chemistry, 30.06.2019 14:00, kingjonesjr

Can the groups of the periodic table be numbered in two different ways

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Chemistry, 23.06.2019 15:30, cicilee49
In a modern periodic table, there are seven periods. a period is any horizontal row of the periodic table, and the elements in a period have consecutive atomic numbers. a group is any vertical column in the periodic table, and there are 18 such groups. groups 3–12, also known as the “b” group elements, are called transition metals. groups 1–2 and 13–18, also known as the “a” group elements, are sometimes called the main groups. metals are characterized by malleability, ductility, conductivity, and a tendency to lose electrons. main group metals are found in groups 1 and 2. nonmetallic elements fall on the right-hand side of the periodic table, that is, groups 13–18. nonmetals have the tendency to gain electrons and are generally brittle. they can be solids, liquids, or gasses at room temperature. now, label the areas of the modern periodic table using the above information. drag the appropriate labels to their respective targets.
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Chemistry, 28.06.2019 21:00, meme2186
Which statements about the structure of the periodic table are true? a. the periodic table has an irregular shape because it has more periods than groups. b. the inner transition elements are placed at the bottom of the periodic table for easy viewing. c. the periodic table has horizontal groups and vertical periods, giving it a regular rectangle shape. d.the distribution of electrons in energy levels is responsible for the shape of the periodic table. e. nonmetals take up more than half the area of the periodic table. more than one correct answer
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Chemistry, 03.07.2019 01:00, sashllely563
Which statements about the structure of the periodic table are true? the periodic table has an irregular shape because it has more periods than groups. the inner transition elements are placed at the bottom of the periodic table for easy viewing. the periodic table has horizontal groups and vertical periods, giving it a regular rectangle shape. the distribution of electrons in energy levels is responsible for the shape of the periodic table. nonmetals take up more than half the area of the periodic table.
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Physics, 27.07.2019 00:00, doodles51
Which statements are true about the periodic table? check all that apply. a. the periodic table is organized by atomic number. b. there are two different ways to number the groups of the periodic table. c. each box on the table represents one element. d. elements in the same row of the periodic table have the same number of electron shells.
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