Question

question 10. complete the table below by classifying each element as a metal, metalloid, or nonmetal. then, identify the group name to which each element belongs.
element metal, metalloid, or nonmetal group name
magnesium (mg)
chlorine (cl)
zirconium (zr)
potassium (k)
radon (rn)
astatine (at)
helium (he)
bromine (br)
rubidium (rb)
strontium (sr)

Explanation:

Step1: Recall element properties

Magnesium is a metal in Group 2 (alkaline - earth metals).

Step2: Identify chlorine

Chlorine is a non - metal in Group 17 (halogens).

Step3: Determine zirconium

Zirconium is a metal in Group 4 (transition metals).

Step4: Classify potassium

Potassium is a metal in Group 1 (alkali metals).

Step5: Identify radon

Radon is a non - metal in Group 18 (noble gases).

Step6: Determine astatine

Astatine is a metalloid in Group 17 (halogens).

Step7: Classify helium

Helium is a non - metal in Group 18 (noble gases).

Step8: Identify bromine

Bromine is a non - metal in Group 17 (halogens).

Step9: Determine rubidium

Rubidium is a metal in Group 1 (alkali metals).

Step10: Classify strontium

Strontium is a metal in Group 2 (alkaline - earth metals).

Answer:

Element	Metal, Metalloid, or Nonmetal	Group Name
Chlorine (Cl)	Nonmetal	Halogens
Zirconium (Zr)	Metal	Transition metals
Potassium (K)	Metal	Alkali metals
Radon (Rn)	Nonmetal	Noble gases
Astatine (At)	Metalloid	Halogens
Helium (He)	Nonmetal	Noble gases
Bromine (Br)	Nonmetal	Halogens
Rubidium (Rb)	Metal	Alkali metals
Strontium (Sr)	Metal	Alkaline - earth metals