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Electronegativity And Electron Affinity In Covalent Bonds

Electronegativity And Electron Affinity In Covalent Bonds

Assessment

Interactive Video

Chemistry, Science, Physics

9th - 12th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the concepts of electronegativity and electron affinity, highlighting their close relationship. It uses the example of water molecules to illustrate how electronegativity affects covalent bonds, with oxygen being more electronegative than hydrogen. The tutorial also discusses periodic trends, showing how electronegativity increases across a period and decreases down a group. This understanding is crucial for predicting chemical reactions and molecular formations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between electronegativity and electron affinity?

They are the same concept.

High electronegativity usually means low electron affinity.

High electronegativity usually means high electron affinity.

They are unrelated concepts.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a covalent bond, what does it mean for an atom to 'hog' electrons?

The atom loses electrons to other atoms.

The atom shares electrons equally.

The atom attracts electrons from other atoms.

The atom keeps electrons closer to itself.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do electrons spend more time around oxygen in a water molecule?

Hydrogen has more electrons than oxygen.

Oxygen is less electronegative than hydrogen.

Hydrogen is more electronegative than oxygen.

Oxygen is more electronegative than hydrogen.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to electronegativity as you move from left to right across a period?

It increases.

It fluctuates randomly.

It decreases.

It remains constant.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element is more likely to give away an electron, sodium or chlorine?

Sodium

Chlorine

Both are equally likely

Neither is likely

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the size of an atom affect its electronegativity as you move down a group?

Electronegativity increases with size.

Size does not affect electronegativity.

Larger atoms are less electronegative.

Larger atoms are more electronegative.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part of the periodic table contains the most electronegative elements?

Middle

Top right

Bottom right

Bottom left

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