what is group similar objects
Taxonomy
Elements of same group have the same number of valence electrons and hence have similar properties.
All the elements in the same group as Flourine have similar properties. This group of elements is referred to as the halogens, and is located in group 7.
Structure
the answer is like a peer group or informal or formal group
Atoms in the same group have similar structures.
what is group similar objects
This is called a set.
True. In geometry it is sometimes helpful to group objects and look at similarities between them.
Combine
trio
combine
combine
match
Arrange, analyze
This is a two part question. Clustering is when you group a set of objects in a way that the objects that are placed in the same group are similar. An example of clustering is the gathering of different populations based on language.
economy
Those are "concussion" instruments. They include cymbals and castanets.