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Alkali metals are highly___ metals. Fluorine is one of the most reactive elements. A-group1,alkali metals. They are highly reactive … Halogens are among the most reactive of all elements. Favorite Answer. Fluorine is one of the most reactive elements. What are the similar properties of halogens? Halogens are highly reactive, and they can be harmful or lethal to biological organisms in sufficient quantities. The reactivity of the halogens decreases down the group. halogens gain one electron to complete _____ and have____ as ions. Halogens are highly reactive nonmetal elements in group 17 of the periodic table. Relevance. Which group combines most readily with them? They are all fairly toxic. halogens are highly? no they're highly reactive nonmetals. Halogens include solids, liquids, and gases at room temperature, and they vary in color. They readily combine with metals to form salts. 1 decade ago. As pure elements, they form diatomic molecules with atoms joined by nonpolar covalent bonds. They react with metals and non-metals to form halides. Properties of the Halogens . As a group, halogens exhibit highly variable physical properties. Halogens share many similar properties including: They all form acids when combined with hydrogen. This reactivity is due to high electronegativity and high effective nuclear charge. Answer and Explanation: Become a Study.com member to unlock this answer! They have seven valence electrons, so they are very "eager" to gain one electron to have a full outer energy level. Halogens are highly reactive, non-metallic elements found in group 17 on the periodic table. This reactivity is due to high electronegativity and high effective nuclear charge. D-group18,noble gases. Halogens can gain an electron by reacting with atoms of other elements. Halogens are highly reactive nonmetals. Collectively, the Group 17 elements are called halogens (In Greek, the halo is described as salt, genes - means producing, so collectively it can be given as salt-producing). Halogens are highly reactive non-metals and have a great resemblance in their properties. Currently, the group halogen includes the elements fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At), all of which are commonly found on Earth except for astatine. Fluorine is one of the most reactive elements. The ready acceptance of an electron is the reason for the strong oxidising nature of halogens. Answer Save. Halogens are highly reactive, and they can be harmful or lethal to biological organisms in sufficient quantities.This reactivity is due to high electronegativity and high effective nuclear charge.Halogens can gain an electron by reacting with atoms of other elements. elements in group 1A on the periodic table. Halogens can gain an electron by reacting with atoms of other elements. 1 Answer. Halogens are unique because they are highly reactive and form both ionic and covalent bonds with other atoms. totalfan2493. octet and -1 charge. They have seven valence electrons in their outer shell. These reactive nonmetals have seven valence electrons. Halogens have seven valence electrons because halogens have one electron missing, they form negative ions and are highly reactive; They can gain an electron by reacting with atoms of other elements; Fluorine is one of the most reactive elements in existence Halogens are highly reactive, and as such can be harmful or lethal to biological organisms in sufficient quantities. All the halogens are highly reactive. are halogens highly reactive metals. B-group2,alkaline earth metals. alkali metals. C- group17,halogens. Halogens are highly reactive, and they can be harmful or lethal to biological organisms in sufficient quantities. Halogens range from solid (I 2) to liquid (Br 2) to gaseous (F 2 and Cl 2) at room temperature. electronegative. Halogens belong to group 17 of the periodic table.

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