Alkali metals have only one valence electron and so have low binding energy to the metallic crystal lattice. ... A lower amount of energy needed to break a bond means a lower melting/boiling point.
Answer:
Explanation:
The oxidation reduction reactions are called redox reaction. These reactions are take place by gaining or losing the electrons and oxidation state of elements are changed.
Oxidation:
Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.
Reduction:
Reduction involve the gain of electron and oxidation number is decreased.
Consider the following reactions.
4KI + 2CuCl₂ → 2CuI + I₂ + 4KCl
the oxidation state of copper is changed from +2 to +1 so copper get reduced.
CO + H₂O → CO₂ + H₂
the oxidation state of carbon is +2 on reactant side and on product side it becomes +4 so carbon get oxidized.
Na₂CO₃ + H₃PO₄ → Na₂HPO₄ + CO₂ + H₂O
The oxidation state of carbon on reactant side is +4. while on product side is also +4 so it neither oxidized nor reduced.
H₂S + 2NaOH → Na₂S + 2H₂O
The oxidation sate of sulfur is -2 on reactant side and in product side it is also -2 so it neither oxidized nor reduced.
Oxidizing agents:
Oxidizing agents oxidize the other elements and itself gets reduced.
Reducing agents:
Reducing agents reduced the other element are it self gets oxidized
Answer:
HCL
Explanation:
Covalent bond are formed between non metals so look for the pair of non metal atoms and this would be hydrogen chloride (HCL)
the answer is B because I jus did that
Answer:
The answer to your question is below
Explanation:
Metals lose electrons and Nonmetals gain them.
a. Ra is in group IIA it will lose electrons, the ion will be Ra⁺²
b. Br is in group VIIA it will gain electrons, the ion will be Br⁻¹
c. In is in group IIIA it will lose electrons, the ion will be In⁺³
d. Te is in group VIA it will gain electrons, the ion will be Te⁻²
e. Ca is in group IIA it will lose electrons, the ion will be Ca⁺²
f. As is in group VA it will gain electrons, the ion will be As⁻³
g. Al is in group IIlA it will lose electrons, the ion will be Al⁺³
h. Rb is in group IA it will lose electrons, the ion will be Rb⁺¹
