Period 3 elements
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Period 3 elements
Period 3 elements. From left (in their periodic table order) they are: sodium (Na); magnesium (Mg); aluminium (Al); silicon (Si); phosphorus (P, white/red); sulphur (S); chlorine (Cl); and argon (Ar). Successive elements across the period, have a single electron added, and this causes immense changes in the chemical and physical properties. Metals (Na/Mg/Al) become non-metals (P/S/Cl/Ar), solids become gases, and reactive elements (Na/Mg) become inert (Ar). Mg is used in flares, Ar in light bulbs, and Si in microchips. P ands have different structural forms (allotropes). Cl and Ar form diatomic (Cl2) and monatomic (Ar) molecules
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Media ID 6282709
© ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY
Aluminium Argon Chlorine Comparing Comparison Contrast Element Inorganic Magnesium Metal Nonmetal Period Periodic Phosphorus Properties Property Silicon Sodium Solid Sulphur Trend Laboratory Physical Trends
EDITORS COMMENTS
This print showcases the Period 3 elements in all their glory. From left to right, we have sodium, magnesium, aluminium, silicon, phosphorus (white/red), sulphur, chlorine, and argon. As we move across this period on the periodic table, each element gains a single electron leading to remarkable changes in both chemical and physical properties. What is truly fascinating about these elements is how metals like sodium and magnesium transform into non-metals such as phosphorus, sulphur, chlorine, and argon. Solids transition into gases while reactive elements become inert. This contrast highlights the immense impact that a single electron can have on an element's behavior. The significance of these elements extends beyond their properties alone. Magnesium finds its purpose in flares while argon illuminates light bulbs with its unique characteristics. Silicon plays a crucial role in microchips that power our modern world. Moreover, it is worth noting that phosphorus exhibits different structural forms known as allotropes while chlorine and argon form diatomic (Cl2) and monatomic (Ar) molecules respectively. In this stunning visual representation of the Period 3 elements captured by Science Photo Library's lens; we are reminded of the wonders found within the laboratory walls of inorganic chemistry. By comparing and contrasting these diverse elements' properties and trends; scientists continue to unlock new discoveries for various applications without forgetting their commercial use limitations
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