Question

write any two properties of groups​

Answer 1

Group

• A group is a finite or infinite set of elements together with a binary operation (called the group operation) that together satisfy the four fundamental properties of closure, associativity, the identity property, and the inverse property. ...
• Closure: If and are two elements in , then the product is also in .

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Answer 2

Answer:

Elements with similar valance shell electronic configuration are placed in the same group.

Elements show gradually from top to bottom in a group.