Let's Burn 52 Calories! 1  11 mins. Swimming, treading water, moderate effort. 2  6 mins. Running, general. 3  6 mins. Bicycling, general. 4  14 mins. Walking, 2.5 mph, level, firm surface.
It is also worthy to note that Mendeleev's 1871 arrangement was related to the atomic ratios in which elements formed oxides, binary compounds with oxygen whereas today's periodic tables are arranged by increasing atomic numbers, that is, the number of protons a particular element contains.t is also worthy to note that Mendeleev's 1871 arrangement was related to the atomic ratios in which elements formed oxides, binary compounds with oxygen whereas today's periodic tables are arranged by increasing atomic numbers, that is, the number of protons a particular element contains.
This lesson will answer those questions. The elements in the periodic table are arranged in rows according to atomic number and in columns according to the configuration of the outer orbit or shell. The chart below just shows the first 18 elements, so you can get an idea of how the periodic table arranges them.