Question

Analyze: What pattern do you see? Make a rule: Based on your data, how are elements arranged into chemical families?

Answer 1

Answer: in order of increasing atomic number.

Explanation: Elements in the same group have similar chemical properties. This is because they have the same number of outer electrons and the same valency.

Answer 2

What pattern do you see?

Chemical families have the same number of valence electrons.

Make a rule: Based on your data, how are elements arranged into chemical families?

They are arranged vertically depending on how many valence electrons they have, if they have the same amount, they will have the same chemical family in each column.