The periodic table is organized in families and periods. It behaves as a nonmetal in reaction with sodium and a metal when combined with fluorine. Sodium is a chemical element with the symbol Na (from Latin "natrium") and atomic number 11. Salt on its own is neither; it is an ionic compound. Its only stable isotope is 23 Na. It loses an electron easily in chemical reactions so it is a strong metal. Number of electrons in outermost orbit = 1. Sodium has a very low electronegativity. It is really just a nonmetal. 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. It is a soft, silvery-white, highly reactive metal.Sodium is an alkali metal, being in group 1 of the periodic table. The radius of the sodium atom is 1.86 x 10−8 cm. Valence electrons = Electrons in … Metals In the periodic table, you can see a stair-stepped line starting at Boron (B), … Electronic configuration of sodium: 2, 8, 1. As a metalloid, boron's physical and chemical properties are between those of metals and nonmetals. An average sodium … Sodium has a very low electronegativity. Sodium is a metal, and chlorine is a nonmetal. 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. Formation of sodium chloride (NaCl): In sodium chloride; sodium is a metal (alkali metal) and chlorine is non-metal. The lower the electronegativity, the easier the electron is lost and the stronger or more metallic is the metal. Physical Properties of Nonmetals. It is so highly reactive that pure sodium cannot exist on its own in nature. Sodium is a metal that forms a body-centered cubic unit cell. Table salt is a salt. Non-Malleable and Ductile: Non-metals are very brittle, and cannot be rolled into wires or pounded into sheets. Nonetheless, there are many sodium compounds that are common in nature, such as sodium chloride, also known as table salt. One useful way is by metals, nonmetals, and metalloids. In ambient conditions bulk gold is always classified as a metal. The free metal does not occur in … Carbon is a nonmetal but can sometimes be classified as a metalloid. Pure sodium is a soft, silvery metal that is incredibly reactive with both air and water. 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. 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