Question

5.
Why are the elements in group I of periodic table called "alkali metals"? Mention the
symbol of a post-uranium element.​

Answer 1

Answer:

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The alkali metals are so called because reaction with water forms alkalies (i.e., strong bases capable of neutralizing acids). Uranium is a chemical element with the symbol U and atomic number 92. ... A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.