Question

the density of lithium lower then water true or false
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Answer 1

Answer:

HELLO

Explanation:

Lithium has a density of (0.534 g/cm3) which is lower than water (1 g/cm3).

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Answer 2

Answer:

true

Explanation:

Li floats on water but without any reaction with it.

Lithium has a very low density of 0.534 g/cm3, comparable with that of pine wood. It is the least dense of all elements that are solids at room temperature.

Lithium's density is only about half that of water, so it floats on the surface, fizzing and giving off hydrogen gas. It gradually reacts and disappears, forming a colorless solution of lithium hydroxide and highly flammable hydrogen. The colourless solution is highly alkalic

2Li(s)+2H2 O→2LiOH(aq)+H 2(g)