They are electron acceptors. For example, Non-metals themselves are acceptors of electrons. Again, the trend is interrupted at Group 15 due to the np3 configuration (spin pairing must occur). Some non-metals can share electrons and form stable bonds with other atoms. Reaction of non metals with water: Non metals do not react with water as to react, they need to displace hydrogen and for displacing, they need to donate electrons to hydrogen but it is not possible as they are themselves electron acceptors. Non-metals: Non-metals form acidic oxides with oxygen of air. Hence they are unable to displace H+ from the acid to form a salt and release hydrogen gas. LEO goes GER, Loss of electron = oxidation; gain of electron = reduction. Reaction of Non-metals with Chlorine. One exception is hydrogen, but it might in fact be a metal. So, they cannot supply electrons to H+ ions. So, look at the periodic table. Non-metals do not show such displacement reactions. So, they do not displace hydrogen from dilute acids. Solution Show Solution Metals are good reducing agent s because they are electron donors This means metals form positive ions and non-metals form negative ions. 3. By losing those electrons, these metals can achieve noble gas configuration and satisfy the octet rule. Sodium Chloride does not conduct electricity because the oppositely charged ions in Sodium Chloride are held by a strong electrostatic force of attraction and hence the free ions are absent to carry electric current. Generally, form both ionic and covalent bonds. Why solid sodium Chloride does not conduct electricity? It cannot supply electrons to H + and hence, it does not displace hydrogen from dilute acids. Metals are electron donors and hence are electropositive. Metals are good _____ (oxidizing agents / reducing agents) because they are electron _____ (acceptors / donors). Hydrogen is the easy example. That is why metals displace hydrogen from dilute acids. As non - metals do not provide these electrons, they cannot displace hydrogen from acids. Chemical properties of Non-metals: 1. To release H+ from the acid, the non-metal has to provide the extra electron. When any substance reacts with the acid, it provides electrons, so that H+ ion will be formed. Electron Affinities This is the reverse of ionisation (energy change when an electron is added to an atom/ion. Non-metals are electron acceptors and hence are electronegative. Non-metals cannot displace hydrogen from dilute acids. 7. Non-metals can be solids, liquids and even gasses. Ionic bonding is observed because metals have few electrons in their outer-most orbitals. ///// chemistry. Question 8. Generally, metals form ionic bonds. Ionic or electrovalent bonds are formed under the conditions of low ionization energy, high electron affinity, and high lattice energy. Non-metals can not displace hydrogen from acids as, non- metals do not lose electrons radially. Hence non-metals are called electron acceptors. 2. 8. Question 1. Ionic bonds occur between metals (electron donors) and non-metals (electron acceptors) because of the electrostatic force of attraction between positive and negative ions. Metals and Non-metals Class 10 Important Questions Long Answer Type. On the other hand, non-metal is an electron acceptor. The elements to the left tend to donate electrons, because they have less than half a full valence shell. It is seen that electron affinities generally increase on crossing the periods (same trend as for IE’s, and for the same reason). Metals have a tendency to lose electrons and hence they supply electrons, i.e., they are electron donors. Non-metals react with chlorine to form covalent chlorides. 4. Ionic bonds require an electron donor, often a metal, and an electron acceptor, a nonmetal. Non-metals do not react with dilute acids and don’t displace hydrogen from dilute acids, because non-metals are electron acceptor. 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