Noble gas configuration of electrons
How many electrons must be gain or lost by each element to achieve a noble gas configuration of electrons. ( answer selection : Gain or lost)
1). Aluminum2). Phosphorous3). Flouride4). barium
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The reaction for plant photosynthesis of glucose sugar and oxygen gas is:
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Pure aluminum is ductile metal withlow tensile strength and hardness. Its oxide Al2O3 (alumaina) is extremenly strong, hard, and brittle. Can you explain this difference from am atomic bonding point of view?
However, if you mixed them together and took the melting point, it would not be 140.1 - 140.4 °C. Why not? What would happen to the melting point and the range?
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An element crystallizes in a body-centered cubic lattice. The edge of the unit cell is 3.17 A, and the density of the crystal is 6.99 g/cm^3. Calculate the atomic weight of the element.
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