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antoniya [11.8K]
3 years ago
8

Which element is classified as an alkali metal?

Chemistry
2 answers:
puteri [66]3 years ago
4 0
The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium<span> (Li), </span>sodium<span> (Na), </span>potassium<span> (K), </span>[note 1] rubidium<span> (</span>Rb), caesium (Cs<span>), </span>[note 2]<span> and francium (Fr). </span>
dusya [7]3 years ago
3 0

Explanation:

All the elements of group 1 in the periodic table are known as alkali metals. These are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (fr).

Characteristics of alkali metals are as follows.

  • Alkali metals are soft and can be cut with a knife.
  • They are good conductors of heat and electricity.
  • They have only 1 electron in their outermost sub-shell.
  • They are very reactive.
  • Alkali metals are ionic in nature.
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