5. Write the name of each family at the top of the columns on your perioot szible using the following information
Alkali Metals - 1 valence electron
Alkaline Earth Metals - 2 valence electrons
Boron Family - 3 valence electrons
Nitrogen Family - 5 valence electrons
Oxygen Family - 6 valence electrons
Halides - 7 valeace electrons
Noble Gases - Complete outer shells
Carbon Family - 4 valence electrons

The density would be 1.622

They can measure  the amount of energy gained or lost

C. 1s22s22p63s23p43d104s24p5

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na