Question

5 properties of actinoids.​

Answer 1

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••••All are radioactive. ...

••••Actinides are highly electropositive.

•••• The metals tarnish readily in air. ...

••••Actinides are very dense metals with distinctive structures. ...

••••They react with boiling water or dilute acid to release hydrogen gas.

••••Actinide metals tend to be fairly soft.

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Answer 2

Answer:

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${\sf→ 5 PROPERTIES OF ACTINOIDS}$

▶️ Actinoids are typical metals.

▶️They have relatively high density and plasticity.

▶️ All actinoids are radioactive.

▶️ All of them are soft and have a silvery colour which tarnishes in air.

▶️ Some of them can be cut with a knife.

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