Activity 7.3 Let us find out (Page 102) In which of the above six objects do you think particles are strongly held together?
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Activity 7.3 Let us find out (Page 102)
In which of the above six objects do you think particles are strongly held together?

Answer:
Particles are strongly held together in the iron nail, key, and piece of aluminium because they are solid metals with tightly packed atoms bonded by strong metallic forces. Stone also has strong bonds between its particles, making it hard and rigid.