3. Classify each as a physical property or a chemical property.
a. Aluminum has a silvery color.
b. Gold has a density of 19 g/cm”.
c. Sodium ignites when dropped in water.
d. Water boils at 100°C
e. Silver tarnishes.
f. Mercury is a liquid at room temperature.

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Alpha particles have positive charge, beta particles have negative charge, and answer 4 just doesn’t make sense. thus, you are left with only one possible answer.

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

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