Question

4. Поясніть на прикладі сполук, виражених формулами Cl2, Naci, CF4, Bra, Co., які елементи проявляють більшу електронегатив- ність і чому.​

Answer 1

Ответ:

Найбільшу електронегативність проявляють ті сполуки, в яких найбільша різниця між двома речовинами сполуки.

Объяснение:

Тобто якщо брати Cl2, то він має малу електро негативність, тому що два компонента його сполуки однакові. Надеюсь хоть что то стало понятно

Answer 2

Elements with Greater Electronegativity

Electronegativity is a measure of an atom's ability to attract electrons towards itself in a chemical bond. The higher the electronegativity value of an element, the greater its ability to attract electrons. In general, electronegativity increases across a period from left to right on the periodic table and decreases down a group.

Let's examine the compounds mentioned in the question and identify the elements that exhibit greater electronegativity:

1. Cl2 (chlorine gas): Chlorine (Cl) is a halogen and has a high electronegativity. It is located in Group 17 (Group VIIA) of the periodic table. Chlorine is highly electronegative because it has a strong desire to gain an electron to achieve a stable electron configuration. Chlorine readily attracts electrons towards itself in a chemical bond.

2. NaCl (sodium chloride): Sodium (Na) is an alkali metal and chlorine (Cl) is a halogen. While chlorine has a high electronegativity, sodium has a relatively low electronegativity. This is because alkali metals have a tendency to lose electrons and form positive ions, rather than attracting electrons towards themselves. As a result, chlorine exhibits greater electronegativity than sodium in the compound NaCl.

3. CF4 (carbon tetrafluoride): Carbon (C) is a nonmetal and fluorine (F) is a halogen. Fluorine has the highest electronegativity of all the elements on the periodic table. Carbon has a lower electronegativity compared to fluorine. In CF4, fluorine atoms attract electrons towards themselves more strongly than carbon, resulting in a polar covalent bond.

4. Br2 (bromine): Bromine (Br) is a halogen and has a high electronegativity. Similar to chlorine, bromine has a strong desire to gain an electron to achieve a stable electron configuration. Bromine readily attracts electrons towards itself in a chemical bond.

5. Co (cobalt): Cobalt (Co) is a transition metal and does not exhibit as high electronegativity as the halogens mentioned above. Transition metals generally have lower electronegativity values compared to nonmetals. Cobalt tends to lose electrons and form positive ions rather than attracting electrons towards itself.

In summary, chlorine, fluorine, and bromine are the elements that exhibit greater electronegativity in the compounds Cl2, CF4, and Br2, respectively. Sodium and cobalt have lower electronegativity values compared to chlorine, fluorine, and bromine.

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