Question

each of the following number is not a square number rectify the reason in each case 7448312​

Answer 1

Answer:

An element has electronic configuration 2, 8, 7. (a) To which group and period of the long form of Periodic Table does it belong? (b) What is atomic number of this element? (c) Is it metallic or non-metallic and why? (d) Identify the element. (e) Name an element chemically similar to this element.Read more on Sarthaks.com - https://www.sarthaks.com/959760/element-electronic-configuration-which-group-period-long-form-periodic-table-does-belong