Web28 okt. 2009 · 1s2 2s2 2p2. That is the ground state meaning that all of the lowest levels have been filled. If we want an excited atom, we might promote one of the 2p2 electrons up to a 3s and the configuration would be 1s2 2s2 2p1 3s1. That is NOT the ground state because the 3s electron can occupy a lower level; namely, the 2p level. Web19 dec. 2024 · Helium Helium has the smallest atomic radius. This is due to trends in the periodic table, and the effective nuclear charge that holds the valence electrons close to the nucleus. What element has the largest atomic radius in order? Explanation: Francium has the largest, Helium has the lowest.
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WebUranium --- 92 List ordered from Lowest to Highest 1, 2, 3. Helium --- 2 Beryllium --- 4 Carbon --- 6 Sodium --- 11 Magnesium --- 12 Silicon --- 14 Sulfur --- 16 Chlorine --- 17 … WebCharacteristic Properties of Metalloids. Metalloids are solids. They have a metallic luster, and generally look like metals. They are brittle, and easily shattered. Metalloids can … ertc faq irs
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Web17 jul. 2024 · Metalloids are important semiconductors, often used in computers and other electronic devices. Boron (B): Atomic number 5 Silicon (Si): Atomic number 14 … Web7 apr. 2024 · The broad and weak peaks of Ti 2p spectra should be attributed to the low atomic concentration of Ti 4+. In addition, as the XPS technique can only focus on the surface and near-surface areas, Fe 3+ fails to arise any signal due to the bulk morphology of the powder and the even lower concentration of iron present. Web6 nov. 2012 · Boron is the metalloid with the lowest atomic mass. Related questions Which metalloid has the smallest atomic radius? Astatine What is the smallest metalloid? That … ertc fourth quarter 2021