Question

elements are organized into families according to their physical and chemical properties. identify the elements that you used in step 5 that belong to each family based on the number of valence electrons. give the name and symbol for each element.
alkali metals - 1 valence electron
alkaline earth metals - 2 valence electrons
family - 3 valence electrons
family - 4 valence electrons
family - 5 valence electrons
family - 6 valence electrons
7 valence electrons
gases - complete outermost shell

Explanation:

Step1: Recall alkali - metals family

Alkali metals have 1 valence electron. Hydrogen (H), Lithium (Li), Sodium (Na) are examples.

Step2: Recall alkaline - earth metals family

Calcium (Ca) and Magnesium (Mg) are common alkaline - earth metals with 2 valence electrons.

Step3: Recall boron family

Boron (B) and Aluminum (Al) have 3 valence electrons and belong to boron family.

Step4: Recall carbon family

Carbon (C) and Silicon (Si) have 4 valence electrons and are in carbon family.

Step5: Recall nitrogen family

Nitrogen (N) and Phosphorus (P) have 5 valence electrons and belong to nitrogen family.

Step6: Recall oxygen family

Oxygen (O) and Sulfur (S) have 6 valence electrons and are in oxygen family.

Step7: Recall halogen family

Fluorine (F) and Chlorine (Cl) have 7 valence electrons and belong to halogen family.

Step8: Recall noble gases

Helium (He) and Neon (Ne) have complete outermost shells.

Answer:

Alkali Metals - 1 valence electron: Hydrogen (H), Lithium (Li)
Alkaline Earth Metals - 2 valence electrons: Calcium (Ca), Magnesium (Mg)
Boron Family - 3 valence electrons: Boron (B), Aluminum (Al)
Carbon Family - 4 valence electrons: Carbon (C), Silicon (Si)
Nitrogen Family - 5 valence electrons: Nitrogen (N), Phosphorus (P)
Oxygen Family - 6 valence electrons: Oxygen (O), Sulfur (S)
Halogen Family - 7 valence electrons: Fluorine (F), Chlorine (Cl)
Noble Gases - Complete outermost shell: Helium (He), Neon (Ne)