Practice Metallic Bond in Chemistry

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

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Quick Recap

A metallic bond is the attraction between a lattice of positive metal ions and a sea of delocalized valence electrons that move throughout the solid.

Metal atoms share mobile electrons across the whole solid instead of keeping them between fixed pairs of atoms.

Showing a random 20 of 50 problems.

Example 1

easy
Why do metals usually have a shiny appearance (luster)?

Example 2

easy
Does metallic bonding explain why metals conduct electricity?

Example 3

challenge
In one paragraph, use metallic bonding to predict the trend in melting point across Period 3 (Na, Mg, Al), and check against actual values (98, 650, 660 °C).

Example 4

hard
Group 1 metals get softer and lower-melting down the group (Li -> Cs). Explain in terms of metallic bonding.

Example 5

easy
Are metallic bonds directional (pointing between specific atoms) or nondirectional?

Example 6

easy
In the electron-sea model, what surrounds the positive metal ions?

Example 7

hard
Explain why stretching a metal too far causes it to 'work harden' before breaking.

Example 8

medium
Why can't carbon (in graphite or diamond) be described accurately by the electron-sea model?

Example 9

medium
Explain why ionic solids are brittle but metals are malleable.

Example 10

medium
Why is iron magnetic but copper is not, even though both have metallic bonding?

Example 11

hard
Why does mercury have an anomalously low melting point (-39 °C) for a metal?

Example 12

hard
Why does an ionic crystal shatter while a metal of similar hardness bends?

Example 13

easy
What charge do the metal atoms carry in the metallic 'sea of electrons' model?

Example 14

easy
Is metallic bonding present in a piece of solid copper wire?

Example 15

medium
Why does the electrical conductivity of a metal usually decrease slightly as temperature rises?

Example 16

challenge
Explain why metallic bonding cannot be modeled as 'many tiny ionic bonds' between metal cations.

Example 17

medium
Predict and explain whether liquid mercury still conducts electricity.

Example 18

easy
Fill in the blank: ____ electrons are responsible for metallic bonding.

Example 19

medium
Fill in the blank: the metallic bond is described as the attraction between positive metal ____ and a sea of delocalized ____.

Example 20

easy
What kind of charge do metal atoms become in a metallic bond?
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