Question

match element based on the number of valence electrons a neutral atom would have by dragging and dropping into the correct column. magnesium argon oxygen aluminum bromine lithium

Explanation:

Step1: Recall valence - electron rules

Valence electrons are determined by the group number of the element in the periodic table (for main - group elements).

Step2: Determine valence electrons for Magnesium

Magnesium (Mg) is in Group 2, so it has 2 valence electrons.

Step3: Determine valence electrons for Argon

Argon (Ar) is a noble gas in Group 18, so it has 8 valence electrons.

Step4: Determine valence electrons for Oxygen

Oxygen (O) is in Group 16, so it has 6 valence electrons.

Step5: Determine valence electrons for Aluminum

Aluminum (Al) is in Group 13, so it has 3 valence electrons.

Step6: Determine valence electrons for Bromine

Bromine (Br) is in Group 17, so it has 7 valence electrons.

Step7: Determine valence electrons for Lithium

Lithium (Li) is in Group 1, so it has 1 valence electron.

Answer:

Magnesium: 2 valence electrons
Argon: 8 valence electrons
Oxygen: 6 valence electrons
Aluminum: 3 valence electrons
Bromine: 7 valence electrons
Lithium: 1 valence electron