Bond Types from Property Evidence Worksheet

Question 1

Which particle model explains poor conduction in a solid ionic crystal?

1. The ions are held in an ordered lattice.
2. The ions can freely flow through the crystal.
3. All ions change into neutrons.
4. The solid consists only of mobile electrons.

Question 2

Explain how molten ionic material can conduct through a different carrier than a solid metal.

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Question 3

Which observation best supports a model of neutral discrete molecules?

1. Low melting point and poor conductivity in the solid and liquid
2. High solid conductivity and mobile electrons
3. Strong conductivity only after an ion lattice melts
4. The material’s color alone

Question 4

Explain why poor solid conductivity alone cannot distinguish an ionic solid from a molecular solid.

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Question 5

Which sample is best classified as a metal in this set?

1. P
2. Q
3. R
4. None

Question 6

Use both conductivity readings to explain why Q fits an ionic model.

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Question 7

Calculate how much higher Q’s melting point is than R’s.

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Question 8

Which observation best distinguishes P from Q?

1. P has a melting point above 45 °C.
2. Both conduct when molten.
3. P conducts well as a solid, while Q conducts poorly as a solid.
4. Both are pure samples.