Question

write the name of the element family to which each of the elements in the following table belongs. your answer should be a word or a short (2 or 3 word) phrase, with no numbers in it. element rubidium fluorine family

Explanation:

Step1: Identify fluorine's family

Fluorine is in group 17, known as halogens.

Step2: Identify rubidium's family

Rubidium is in group 1, known as alkali - metals.

Answer:

Fluorine: Halogen
Rubidium: Alkali - metal