Question

Mendeleev put elements in groups while creating the periodic table. What important role do groups play in the structure of the periodic table? (5A)
Groups show similar chemical properties about the elements.
Groups show similar chemical properties about the elements.

Groups show what state of matter the element will be at ground state.
Groups show what state of matter the element will be at ground state.

Groups show how important elements to living things.
Groups show how important elements to living things.

Groups show the energy level of the element.
Groups show the energy level of the element.

Answer 1

Answer:

Groups show similar chemical properties about the elements

Explanation:

The periodic table is divided into groups and periods. Groups are vertical while periods are horizontal.

All elements in the same group possess the same number of outermost shell electrons. This number of outermost shell electrons controls the reactivity of the elements in the group.

Hence, groups show similar chemical properties of the elements in them, Groups separate elements into families which assist in the speedy study of elements.