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-BARSIC- [3]
3 years ago
5

Which region of the periodic table shown here contains elements that are easiest to oxidize?

Chemistry
2 answers:
Sveta_85 [38]3 years ago
7 0
Answer is: region A (from picture below).
Region A contains alkaline and earth alkaline elements (metals). This elements have lowest ionizations energy and easy remove valence electrons (alkaline metals one electron and earth alkaline metals two electrons). When element lose electrons, oxidation number of element grows (oxidation process).

Flauer [41]3 years ago
4 0

Region A of the periodic table contains elements that are easiest to oxidize

<h3>Further explanation</h3>

The oxidation-reduction reaction or abbreviated as Redox is a chemical reaction in which there is a change in oxidation number

3 basic theories explain this Redox concept:

  • 1. Binding/release of oxygen

The oxidation reaction is the binding of a substance with oxygen. (O₂)

For example:

2SO₂ + O₂ ----> 2SO₃

The reduction reaction is the release of oxygen from a substance.

For example:

2CuO → 2Cu + O₂

  • 2. Electron release / binding reaction

Oxidation is an electron release event

Example:

2F ---> 2Fe³⁺ + 6e⁻

The reduction is an electron capture event

Example:

3O₂ + 6e⁻ ---> 3O²⁻

  • 3. The reaction of addition/reduction of oxidation number

Oxidation is an increase in oxidation number, while reduction is a  decrease in oxidation number.

The periodic system of elements is an arrangement of elements classified based on similar properties and their atomic number order.

The periodic system is divided into groups (vertical order) and periods (horizontal order)

Ionization energy is the energy that an atom needs in the gas phase to release its electrons

the ionization energy from one period from left to right gets bigger, which shows that the more right the elements are getting harder to release the electrons

Electronegativity is the tendency of an atom to attract electrons

In a period from left to right, electronegativity is getting bigger, showing a tendency to attract more and more electrons

Elements that are easily subjected to oxidation, will usually be easy to release electrons, especially in elements of the Alkaline and alkaline earth groups, which will release electrons to be stable and have electron configurations such as noble gases

Apart from alkaline and alkaline earth has weak ionization energy making it easy to release electrons and also low electronegativity so that it is difficult to attract electrons

So the correct area is area A

<h3>Learn more</h3>

electron affinity

brainly.com/question/1440853

Identify the group number in the periodic table

brainly.com/question/2014634

the charge on each ion in the compounds

brainly.com/question/5880856

Keywords: element, period, ionization energy

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