Which of the following describe the element Li. Reacts vigorously with alkali me

Question

Which of the following describe the element Li. Reacts vigorously with alkali metals to form salts forms a basic solution in water is found in nature only combined with other elements is very reactive as a metal consists of diatomic molecule in elemental form is one of the group of the least reactive elements Which of the following describe the element Li. Choose all that apply. Consists of diatomic molecule in element form is found in nature only combined with other elements is one of the group of the least reactive elements is very reactive as a mental reacts vigorously with alkali metals to form salts form a basic solution in water

Explanation / Answer

Question 1.

Lithium is an alkali metal, it has 1 electron in its valence shell, therefore, reacts readily with any species to form Li+ ion

from the list:

a) Lithium will not react with other alkalie metals, specially NOT to form salts

b) true, since Li(s) + H2O = 1/2H2(g) + Li+(aq) + OH-; there is OH- therefore, basic

c) true, since it is pretty reactive, will be found typically as Li2O

d) true, this is very reactive, due to the electron in its valence shell

e) false, will not form diatomic elements

f) false, it is one of the most reactive groups

Question 2.

this is exactly the same as above:

a) wont form diatomic molecules (false)

b) will be found in nature with other elements (ture)

c) it is one of the most reactive groups (false)

d) it is very reactive ( true)

e) it reacts mainly with nonmetals, therefore, (false)

f) true, will form basic solutoin

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