Physics

Physics, 23.07.2019 01:30, flowergirly34

The chemical elements are arranged in order of increasing atomic number. the rows are called periods and the columns are called groups.

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Chemistry, 12.07.2019 19:00, parmer6527p810bw

How is the modern periodic table arranged ? a. by atomic weight, with chemical families or groups in columns and periods in rows.b. by atomic weight, with chemical families or groups in rows.c. by atomic number, with chemical families or groups in columns and periods in rows d. by atomic number, with chemical families or groups in rows and periods in columns

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Biology, 29.07.2019 00:00, mmcdaniels46867

How are elements organized on the periodic table? select all that apply. a- into periods or horizontal rows that share a pattern b- by order of relative abundance of the element on earth c- into order of densities from lowest to highest d- into vertical groups of elements that have similar physical and chemical properties e- by increasing order of atomic number

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Chemistry, 24.08.2019 04:10, carog24

Which best compares and contrasts how john newlands and dmitri mendeleev organized elements? both newlands and mendeleev arranged elements according to their chemical properties, but only newlands used atomic mass as well. both newlands and mendeleev arranged elements according to their atomic masses, but only mendeleev used chemical properties as well. both newlands and mendeleev organized elements into groups, but only newlands used a table with rows and columns. both newlands and mendeleev organized elements into a table with rows and columns, but only mendeleev named different groups of elements.

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Chemistry, 29.08.2019 11:20, mzyjohnson47

If you don't know all the answers just answer the ones you do know and number them so i know which one you are answering 1.which of the following characteristics was not included in dmitri mendeleev's periodic table a.heavier elements placed in rows closer to the bottom of the table b.elements arranged by increasing atomic mass c. elements placed in columns based on chemical properties or d. distribution of elements determined by electron configuration 2. according to the periodic law what is the relationship between elements and periods a.element properties repeat from period to period b.elements in a period have the same physical properties c. elements have the same physical and chemical properties in any period or d. elements in a period have the same chemical properties 3. which of these sets of elements has similar properties consult the periodic table a.strontium, magnesium, calcium, beryllium b. oxygen, nitrogen, carbon c. hydrogen, helium, neon or d. chromium, magnesium, iron, cobalt

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