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18 Nov 2019
Which of the following statements is false regarding Alkaline metals? Beryllium metal is toxic. A significant fraction of magnesium that is produced ends up acting as an alloying element in aluminum. Beryllium has a lower melting point than Aluminum. Magnesium is very susceptible to corrosion, even when placed in contact with other metals. Beryllium and Magnesium are the only alkaline metals that have use as structural materials, since Ca, Sr, Ba, and Ra are susceptible to corrosion in air. Aluminum has a higher density than Magnesium. Which of the following statements is true regarding alkali metals? When a lithium atom loses an electron, the resulting ion has an electron configuration comprised of a noble gas core and a filled p shell: the outer s^1 electrons of alkali metals is very tightly bound to their positive nuclei, rendering those metals fairly non-reactive, chemically. The chemical reactions associated with Lithium in a reacted state(such as Lithium Peroxide and Lithium Hydroxide) are useful for applications pertaining to modifying atmospheric composition. Francium is the most abundant of all metals and is therefore the least expensive metal per kilogram. Lithium the largest atom within the alkali metal group. The primary reason that alkali metals are submerged in mineral oil for storage is that the mineral oil changes color when these metals undergo radioactive decay, thereby acting as a color indicator for radiation release.
Which of the following statements is false regarding Alkaline metals? Beryllium metal is toxic. A significant fraction of magnesium that is produced ends up acting as an alloying element in aluminum. Beryllium has a lower melting point than Aluminum. Magnesium is very susceptible to corrosion, even when placed in contact with other metals. Beryllium and Magnesium are the only alkaline metals that have use as structural materials, since Ca, Sr, Ba, and Ra are susceptible to corrosion in air. Aluminum has a higher density than Magnesium. Which of the following statements is true regarding alkali metals? When a lithium atom loses an electron, the resulting ion has an electron configuration comprised of a noble gas core and a filled p shell: the outer s^1 electrons of alkali metals is very tightly bound to their positive nuclei, rendering those metals fairly non-reactive, chemically. The chemical reactions associated with Lithium in a reacted state(such as Lithium Peroxide and Lithium Hydroxide) are useful for applications pertaining to modifying atmospheric composition. Francium is the most abundant of all metals and is therefore the least expensive metal per kilogram. Lithium the largest atom within the alkali metal group. The primary reason that alkali metals are submerged in mineral oil for storage is that the mineral oil changes color when these metals undergo radioactive decay, thereby acting as a color indicator for radiation release.
Elin HesselLv2
15 Jul 2019