True. Atomic radius increases from left to right in a period and increases from top to bottom in a group. C) An alkaline earth metal. 2) As you move across a period, atomic radius decreases. Across the period this value decreases with fluorine having the lowest. A.R. The heaviest object ever directly weighed was the Revolving Service Structure (RSS) of launch pad 39B at NASA’s Kennedy Space Center, Florida, USA. Iridium is a chemical element with the symbol Ir and atomic number 77. What is the heaviest thing on earth? Lithium has the largest atomic radius in period 2 at 145 picometres. Click here to buy a book, photographic periodic table poster, card deck, or 3D print based on the images you see here! Which element in Period 2 has the most mass? The element which has the largest atomic radius is Cesium. Log in for more information. Updated 5 … Answer Questions. What is the family name of the elements in group 2? True or false. Atomic Radius is defined as the distance between the center of the nucleus and the outermost shell of an atom. Asked 5 days ago|12/3/2020 2:26:48 AM. 2 Answers. What element in the second period has the largest atomic radius? How does the size of fluorine ion (F-1) compare to that of a fluorine atom (F)? 9 years ago. 02. D) an alkali metal. Which type of element in period 2 has the largest atomic radius? Dec20. Relevance. ... Do radioactive elements cause water to heat up? another hint is, if you are to compare elements in a group or period, check the atomic number, the higher the atomic number is, the bigger the atomic radius is. Be Ca Mg Sr. Sr. Lithium in the second period has the largest atomic radius. Lithium has the largest atomic radius in period 2 at 145 picometres. ... Period. Which element has the largest atomic radius? The elemenents of the periodic table sorted by atomic mass which element in period 2 has the greatest atomic radius; Prev Next. Period 2 is the first period in the periodic table from which periodic trends can be drawn. a. carbon c. potassium b. lithium d. neon. s. Score 1. 9 answers. Across the period this value decreases with fluorine having the lowest. Factor Xa Inhibitor Reversal A) A halogen. About; Faculty; Journal Club. Answer Save. Cesium has 6 orbital shells, which means that it automatically is big. Empowering stroke prevention. This site is intended for healthcare professionals only. A very hard, brittle, silvery-white transition metal of the platinum group, iridium is considered to be the second-densest metal (after osmium) with a density of 22.56 g/cm 3 as defined by experimental X-ray crystallography. Elements in the same family have the same number of valence electrons? Answer Questions. Period 2 has much more conclusive trends. B) A noble gas. Question. 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