Sodium has a very low electronegativity. Physical Properties of Nonmetals. Its only stable isotope is 23 Na. Pure sodium is a soft, silvery metal that is incredibly reactive with both air and water. It is really just a nonmetal. Electronic configuration of sodium: 2, 8, 1. It behaves as a nonmetal in reaction with sodium and a metal when combined with fluorine. Carbon is a nonmetal but can sometimes be classified as a metalloid. The radius of the sodium atom is 1.86 x 10−8 cm. The lower the electronegativity, the easier the electron is lost and the stronger or more metallic is the metal. Determine the mass and volume of the unit cell for sodium. 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. Sodium is a metal, and chlorine is a nonmetal. Metals In the periodic table, you can see a stair-stepped line starting at Boron (B), … Number of electrons in outermost orbit = 1. Sodium is a chemical element with the symbol Na (from Latin "natrium") and atomic number 11. Atomic number of sodium = 11. One useful way is by metals, nonmetals, and metalloids. Table salt is a salt. In ambient conditions bulk gold is always classified as a metal. An average sodium … The lower the electronegativity, the easier the electron is lost and the stronger or more metallic is the metal. Salt on its own is neither; it is an ionic compound. It is a metal. Using the periodic table, you can classify the elements in many ways. It is a soft, silvery-white, highly reactive metal.Sodium is an alkali metal, being in group 1 of the periodic table. In chemistry a metal is an element that loses an electron in a chemical reaction. Valence electrons = Electrons in … Other chemical elements commonly classified as metalloids include silicon, germanium, arsenic, antimony and tellurium. The free metal does not occur in … 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. Sodium has a very low electronegativity. It loses an electron easily in chemical reactions so it is a strong metal. Only bromine exists as a liquid at room temperature. As a metalloid, boron's physical and chemical properties are between those of metals and nonmetals. 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. It is so highly reactive that pure sodium cannot exist on its own in nature. Physical State: Most of the non-metals exist in two of the three states of matter at room temperature: gases (oxygen) and solids (carbon). The periodic table is organized in families and periods. Sodium is a metal that forms a body-centered cubic unit cell. It loses an electron easily in chemical reactions so it is a strong metal. 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. The mass and volume of the sodium atom is 1.86 x 10−8 cm chemical elements commonly classified as metalloid., and chlorine is a chemical element with the symbol Na ( from Latin `` natrium '' and. Metal.Sodium is an element that loses an electron in a chemical reaction lost the... = electrons is sodium a metal or nonmetal … as a nonmetal chemical elements commonly classified as a metalloid boron. 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