Sodium has a very low electronegativity. The periodic table is organized in families and periods. Salt on its own is neither; it is an ionic compound. Its only stable isotope is 23 Na. It behaves as a nonmetal in reaction with sodium and a metal when combined with fluorine. It is so highly reactive that pure sodium cannot exist on its own in nature. Table salt is a salt. Determine the mass and volume of the unit cell for sodium. Sulphur is a non-metal: Magnesium is a metal (i) Poor conductor of heat and electricity (i) Good conductor of heat and electricity (ii) Neither malleable nor ductile (ii) Malleable nor ductile (iii) S + O 2 →SO 2 SO 2 + H 2 O → H 2 SO 3 (Sulphurous acid) Sulphur dioxide is acidic oxide. It is a soft, silvery-white, highly reactive metal.Sodium is an alkali metal, being in group 1 of the periodic table. Electronic configuration of sodium: 2, 8, 1. Atomic number of sodium = 11. Sodium is a metal, having atomic number 11. silicon is a semi-metal as it has properties of both a metal and a non-metal. Physical State: Most of the non-metals exist in two of the three states of matter at room temperature: gases (oxygen) and solids (carbon). As a metalloid, boron's physical and chemical properties are between those of metals and nonmetals. One useful way is by metals, nonmetals, and metalloids. Carbon is a nonmetal but can sometimes be classified as a metalloid. Using the periodic table, you can classify the elements in many ways. Sodium is a metal that forms a body-centered cubic unit cell. The free metal does not occur in … Only bromine exists as a liquid at room temperature. Metals In the periodic table, you can see a stair-stepped line starting at Boron (B), … Non-Malleable and Ductile: Non-metals are very brittle, and cannot be rolled into wires or pounded into sheets. Sodium has a very low electronegativity. An average sodium … Nonetheless, there are many sodium compounds that are common in nature, such as sodium chloride, also known as table salt. Valence electrons = Electrons in … In ambient conditions bulk gold is always classified as a metal. The lower the electronegativity, the easier the electron is lost and the stronger or more metallic is the metal. Other chemical elements commonly classified as metalloids include silicon, germanium, arsenic, antimony and tellurium. It loses an electron easily in chemical reactions so it is a strong metal. In chemistry a metal is an element that loses an electron in a chemical reaction. Formation of sodium chloride (NaCl): In sodium chloride; sodium is a metal (alkali metal) and chlorine is non-metal. In chemistry a metal is an element that loses an electron in a chemical reaction. Number of electrons in outermost orbit = 1. Physical Properties of Nonmetals. 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