2,8,8,1 electron configuration

i. The electronic configuration of an element is 2, 8, 8, 1 (i) State its group number and period number in the modern periodic table (ii) State whether this element is a metal or a non-metal Give reason for the justification of your answer in each case - Science - Periodic Classification of Elements 3 Answers. What is the group of this element? I assume you mean that orbital 1 has 2 electrons, orbital 2 has 8 and orbital 3 has 8. What are the rules that govern the 3rd energy level? According to octet rule, the outermost shell of an atom can accommodate maximum 8 electrons (except K shell which can accommodate maximum 2 electrons). The electron configuration (electronic configuration) of an atom of sulfur is 2,8,6 An atom of sulfur has 2 electrons in the first energy level (K shell), 8 electrons in the second energy level (L shell) and 6 electrons in the third energy level (M shell). 2. (b) Since X has 2 valence electrons, so it belongs to group no. Why is it that the electron configuration for calcium is 2, 8, 8, 2 and not 2, 8, 10? An up-to-date periodic table with detailed but easy to understand information If you don’t have a chart, you can still find the electron configuration. (c) The valency of X is 2 because it can acquire stable gas configuration by losing 2 electrons. Is calcium special? What is the valency of this element? Answer Save. The electronic configurations of the elements in group 1: The atoms of all group 1 elements have similar chemical properties and reactions because they all have one electron in their outer shell. Hence, the electronic configuration of potassium is 2, 8, 8, 1 and not 2, 8, 9. - 2268208 To which period does this element belong? The electron configuration for potassium is . The first twenty elements 1 2 13 14 15 16 17 18; 1: hydrogen 1 : helium 2: 2: lithium 2.1: beryllium 2.2: boron 2.3: carbon K 1s2 2s2 2p6 3s2 3p6 4s1 (the numbers at the end are supposed to be in superscripts, to represent the number of valence electrons in the orbital) Or. Relevance. The electron configuration states where electrons are likely to be in an atom. (a) X belongs to period 4 because it has 4 energy shells. Electronic configuration of 'X' is 2, 8, 8, 2. An element has its electron configuration as 2,8,2. The electronic configuration of an element T is 2,8,8,1. iii. What is the atomic number of this element? Now answer the following questions. For which other elements does the 3rd energy level only hold 8 electrons and not 18? v. With which of the following elements would this element resemble? As an approximate rule, electron configurations are given by the Aufbau principle and the Madelung rule. Use the element blocks of the periodic table to find the highest electron orbital. K 2, 8, 8, 1 ii. iv.

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