is there a difference between ground state valency and excited state valency? how does promotion of electrons to higher energy levels affect the valency of an atom?

What is the valency of an element of which the equivalent weight is 12 and the specific heat is 0.25? · The correct Answer is:B · Specific heat × Atomic weight ... Definition: The valency of an element is a measure of it's combining power with other elements. The number of electrons that an atom can share, lose or gain ... “The electrons present in the outermost shell/orbit of the atom of an element are called valence electrons.” In all chemical reactions, only the electrons ... Valency is 5 ‍ because it gains 5 ‍ electrons, not loses. B. Step 3 ‍ is wrong. Valency is 5 ‍ because it gains 5 ‍ electrons, not loses. ... Step 2 ‍ is wrong ... Uranium is a silvery-white metallic chemical element in the periodic table, with atomic number 92. It is assigned the chemical symbol U. A uranium atom has ... Aug 9, 2017 ... Valency of an element is the number of electrons in the outermost shell of the element. Answer link. Related topic. Elements Questions. Related ... the atom demanded an electrical basis for the valency bond. The transfer of electrons and the shared electron pair were adopted by chemists and again we ... Group 14 elements have 4 valence electrons in their outer shell. The lighter of these elements can form both cations with a +4 charge, and anions with a -4 ... valency of each atom)?. (b) When calcium reacts with chlorine, calcium chloride (CaCl2) is formed, comprising calcium ions and chloride ions (i.e. charged ... Element/Ion/Radical. Symbol. Valence/Oxidation Number. Aluminum. Al. 3+. Antimony. Sb. 3+, 5+. Arsenic. As. 3+, 5+. Barium. Ba. 2+. Bismuth. Bi. 3+. Boron. B. 3 ...