The first alkali metal is _______.

hydrogen

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lithium

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sodium

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francium

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Solution

The correct option is B lithium
Alkali metals are the elements in the first group of the periodic table other than hydrogen. The first alkali metal is lithium (Li).

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Is hydrogen a alkali metal or not?and why?

Q. The first alkali metal is :

Name :

(a) a metallic hydroxide soluble in excess of $N H_{4} O H$ .
(b) a metallic oxide soluble in excess of caustic soda solution. (c) a strong alkali.
(d) a weak alkali.
(e) two colourless metal ions.
(f) two coloured metal ions.
(g) a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
(h) two bases which are not alkalis but dissolve in strong alkalis. (i) a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
(j) a colourless cation, not a representative element.

Q. Why is the first ionization energy of a nonmetal significantly higher than that of an alkali metal?

Q. Name
(a) a metallic hydroxide soluble in excess of NH₄OH.
(b) a metallic oxide soluble in excess of caustic soda solution.
(c) a strong alkali
(d) a weak alkali
(e) two coloured metal ions.
(f) two bases which are not alkalis but dissolve in strong alkalis.
(g) a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

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The first alkali metal is _______.

The correct option is B lithiumAlkali metals are the elements in the first group of the periodic table other than hydrogen. The first alkali metal is lithium (Li).

The correct option is B lithium
Alkali metals are the elements in the first group of the periodic table other than hydrogen. The first alkali metal is lithium (Li).