WebAns. (a) The atomic number of the element is 17. (b) F (9) (2, 7) will be chemically similar to the given element. Q6. The positkm of three elements A, B and C in the Per iodic Table are shown below: (a) State whether A is a metal or non-metal. (b) State whether Cis more reactive or less reactive than A. Webknown as the periodic law: The physical and chemical properties of the elements are periodic functions of their atomic numbers. In other words, when the elements are arranged in order of increasing atomic number, elements with similar properties appear at regular intervals. MAIN IDEA Modern periodic tables arrange the elements by both

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Web1) The modern periodic law states that the properties of the elements repeat when the periodic table is arranged according to which of the following? A) increasing atomic number B) increasing mass number C) increasing atomic mass D) increasing isotopic mass E) none of the above A) increasing atomic number WebAnswer: According to the modern periodic table, the elements are organised in increasing order of atomic number, and there are a total of 18 groups and 7 periods. There are 2 elements in the 1st period, 8 elements each in the 2nd and 3rd period, 18 elements each in the 4th and 5th period, and 32 elements in the 6th period and 7th period. how many judges are in the bible

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Web3 aug. 2009 · Discovery of Periodic Law Periodic Law was formulated based on observations made by scientists in the 19th century. In … WebThere are seven periods in the periodic table and period 1 has two elements, 2 nd and 3 rd have 8 elements, 4 th and 5 th have 18 elements and 6 th and 7 th have 32 elements. … Web20 jun. 2024 · Abstract and Figures. The data concerning the formulation of the Periodic Law and certain graphic variants of its interpretation, proposed at different times for 150 years from the moment of the ... how many judges are in the united states