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