Sodium and Chlorine = Sodium Chloride
Potassium and Iodine = Potassium Iodide
Group 1A are alkali metals and group 7A are halogens.
Group 1A are Alkali metals and 7A are Halogens. Both groups comprise very reactive elements.
representative elements
The classification with 1A, 7A etc. is not recommended by IUPAC and is obsolete.The 1A elements are alkali metals, all solids; the 7A elements are the nonmetals (halogens). Halogens can be gaseous, liquids or solids at room temperature.
Valence electron configuration in group 7A (halogens): ns2, np5 in which n=2, 3, 4, 5, ... etc. Starting with fluorine, F, electron configuration: (1s2), 2s2 2p5 (non valence electrons in () brackets)
The charge of group 7A elements when forming ions is -1 (negative 1).
They are Halogens
7 in 7A 2 in 7B The 7A are representive elements The 7B are transition elements
The classification with 1A, 7A etc. is not recommended by IUPAC and is obsolete.The 1A elements are alkali metals, all solids; the 7A elements are the nonmetals (halogens). Halogens can be gaseous, liquids or solids at room temperature.
If you meant to say "elements ARE most likely to bond with," which is probably what you meant, then the answer would be 7A(or 17), also called the Halogens. "Halogen" actually means "salt-forming." When you take a chlorine (7A) and sodium (1A), you end up with table salt! ---- In a nutshell, the answer is Group 7A, or 17.
The alkaline earth metals belong to group 2A elements. The alkali metals belong to group 1A elements. The halogens belong to group 7A elements. The noble gases belong to group 8A elements.
Valence electron configuration in group 7A (halogens): ns2, np5 in which n=2, 3, 4, 5, ... etc. Starting with fluorine, F, electron configuration: (1s2), 2s2 2p5 (non valence electrons in () brackets)
Atoms of column 7A become anions when they react with atoms of group 1A elements, which become cations. Both the cations and the anions are monovalent. The cations and anions together form an ionically bonded compound.
Group 7A are not metals.Alkaline earth metals refer to Group 2A.and group 7a is halogens which are non-metals
The charge of group 7A elements when forming ions is -1 (negative 1).
This is a consequence of the law of periodicity of chemical elements.
They are Halogens
7 in 7A 2 in 7B The 7A are representive elements The 7B are transition elements
Group 1:Hydrogen (H),Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Caesium (Cs) and Francium (Fr). Group7: Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I) and Astatine (At)
- The Group 1A elements are called alkali metals. - The Group 2A elements are called alkaline earth metals. - The nonmetals of Group 7A are called halogens. - The Group 8A elements are called the Noble Gases