WebGroup 7A (or VIIA) of the periodic table are the halogens : fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). The name "halogen" means "salt former", derived from the Greek words halo- ("salt") and -gen ("formation"). The Group 7A elements have seven valence electrons in their highest-energy orbitals ( ns2np5 ). WebWhat is the most active element in Group 7A? 1) All have general outermost shell electronic configuration of ns1. 2) Except Hydrogen, all attain stable inert gas electronic …

Chemistry- Chapter 7 Quiz Flashcards Quizlet

WebA) +1 B) +2 C) +3 D) +4 E) +5 15) Of the atoms below, is the most effective in forming Tt bonds. A) N B) Ge C) P D) C E) Si 16) Which element in group 7A is not capable of having an expanded valence shell (expanded octet)? A) fluorine B) bromine C) chlorine D) astatine E) iodine 17) Which of the following equations This problem has been solved! Web7. Choose the element in each pair that has the largest radius: (DorB 6)) c) He oe 8. Choose the element in each pair that has the highest ionization energy: N rSb 9. When elements have a large radius, they tend to have a (large, mall) i nization energy. WHY??? Periodic Table (continued) 1. Wiich element is a metal: Ba (56) or At (85)? 2. re3 s rank

What is the most active element in Group 7A? - Quora

WebNov 11, 2016 · 1.Group 7A elements: it is that group of periodic table in which each element has 7 electrons in outermost shell. The outermost shell can be filled by maximum 8 … WebFluorine is the most reactive element in the periodic table, forming compounds with every other element except helium, neon, and argon. The reactions of fluorine with most other elements range from vigorous to explosive; only O 2, N 2, and Kr react slowly. There are three reasons for the high reactivity of fluorine: re3 safety deposit room