LaH2.75 is the formula
Correct answer: B. Of an interstilial hydride
- A. Of normal binary hydride
- B. Of an interstilial hydride
- C. of covalent hydride
- D. That does not exist
Explanation
HYDRIDES Hydrogen compounds with metals and non-metals are known as hydrides. E.g, Ionic Hydrides: These are made by heating elements from groups I and II (excluding Be and Mg) in hydrogen. These are crystalline white colorless solids with high m.p. and b.p. that are quickly dissolved by water, CO2, or SO2.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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