Respuesta :
Answer:
A) Elements are placed in teh same group because they have similar properties. B) Every element in a family of elements has similar atomic numbers as the others in its family. C) Alkali Metals
Explanation:
The periodic table is the arrangement of elements on the basis of similarity in properties. The same group of elements has an increasing atomic number. The group 1 elements are known as alkali metals.
What is the arrangement in a periodic table?
- The elements in the periodic table are arranged with the similarity in their valence electron and the chemical property across the group. The elements in the group are the same properties.
- Ongoing down the group the number of electrons in the atom increases, there has been an increase in the atomic number across the group.
- The group 1 elements in the periodic table are termed alkali metals.
Learn more about the periodic table, here:
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