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d1i1m1o1n
27 days ago
7

Which of these elements has the least attraction for electrons ina chemical bond?(1) oxygen (3) nitrogen(2) fluorine (4) chlorin

e
Chemistry
2 answers:
eduard [2.5K]27 days ago
5 0

The element with the lowest attraction for electrons in a chemical bond is \boxed{{\text{(4) chlorine}}}.

Additional Explanation:

Electronegativity:

It refers to an atom's capability to draw shared electrons in a bond towards itself. A more electronegative atom will attract bonding electrons more effectively than its less electronegative counterpart. Consequently, electrons are likely to spend more time around the more electronegative atom, thus acquiring a partial negative charge, while the less electronegative atom gains a partial positive charge.

An element's electronegativity increases as its electronegativity value rises.

Trends of electronegativity in the periodic table:

From left to right, electronegativity increases due to a growing nuclear charge, resulting in a stronger attraction for electrons.

As you move down the groups, electronegativity decreases because the atomic size increases, leading to a weaker attraction between the nucleus and its electrons.

The elements fluorine, oxygen, and nitrogen belong to the same row on the periodic table. As you go to the right, electronegativity increases, hence the sequence is N<O<F. In this grouping, nitrogen possesses the lowest electronegativity.

Comparatively, between chlorine and fluorine, chlorine exhibits a lower electronegativity since electronegativity tapers off as you descend the groups.

Thus, we have two elements, nitrogen and chlorine, with lower electronegativity. Though nitrogen and chlorine have nearly identical electronegativity, because chlorine is larger, its electron is held less tightly by the nucleus. Hence, the element with the least attraction for electrons in a chemical bond is chlorine.

For further information:

1. Which ion was formed by providing the second ionization energy?

2. Determine a chemical equation representing the first ionization energy for lithium:

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Electronegativity

Keywords: Elements with the least attraction for electrons, chemical bond, oxygen, nitrogen, fluorine, chlorine.

Alekssandra [2.7K]27 days ago
4 0

Electronegativity indicates how strongly an atom attracts electrons in a bond.
You can easily check the values in your reference table!
The values are: oxygen at 3.4, fluorine at 4.0, nitrogen at 3.0, and chlorine at 3.2.
The smallest value corresponds to the least attraction, thus nitrogen (3) is the correct answer.

Hope this clarifies your question!:-)
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Response:

702 mL

To elaborate:

Given the following:

Mass of sodium hydroxide = 13.20 g

Molarity of H₂SO₄ = 0.235 M

We're tasked with finding the volume of acid necessary to neutralize the sodium hydroxide solution

Step 1: Write the balanced reaction equation

The reaction between H₂SO₄ and NaOH can be summarized as follows:

2NaOH(aq) + H₂SO₄(aq) → Na₂SO₄(aq) + 2H₂O(l)

Step 2: Calculate the moles of NaOH

Moles are calculated by dividing mass by molar mass

The molar mass of NaOH is 40.0 g/mol

Hence;

Number of moles of NaOH = 13.20 g ÷ 40 g/mol

= 0.33 moles of NaOH

Step 3: Determine moles of H₂SO₄ that react

According to the balanced equation, 2 moles of NaOH react with 1 mole of H₂SO₄

Therefore, the ratio giving moles of H₂SO₄ = Moles of NaOH ÷ 2

= 0.33 moles ÷ 2

= 0.165 moles

Step 4: Find the volume of H₂SO₄

Molarity indicates the concentration of the solution in moles per liter

Molarity = Moles ÷ Volume

By rearranging the formula, we find volume = Moles ÷ Molarity

= 0.165 moles ÷ 0.235 M

= 0.702 L

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What are the respective central-metal oxidation state, coordination number, and overall charge on the complex ion in Na2[Cr(NH3)
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Answer:

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Coordination number: 6

Overall charge: -2

Explanation:

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Na₂[Cr(NH₃)₂(NCS)₄]

The central metal is chromium, with NH₃ and NCS as the ligands.

NH₃ acts as a neutral ligand, while NCS carries a negative charge.

The entire complex has a charge of:

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Since each NCS contributes -1 and there are four NCS, the Cr must possess an oxidation state of +2 to achieve an overall charge of -2.

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I trust this clarifies the matter!

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29 days ago
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