Chapter 4

Classify each element as a metal, nonmetal, or metalloid. (a) \(\mathrm{Na}\) (b) \(\mathrm{Ge}\) (c) \(\mathrm{Si}\) (d) \(\mathrm{Br}\) (e) \(\mathrm{Ag}\)

Which elements would you expect to lose electrons in chemical changes? (a) potassium (b) sulfur (c) fluorine (d) barium (e) copper

Which elements would you expect to gain electrons in chemical changes? (a) nitrogen (b) iodine (c) tungsten (d) strontium (e) gold

Which elements are main-group elements? (a) \(\mathrm{Te}\) (b) \(\mathrm{K}\) (c) \(\mathrm{V}\) (d) Re (e) \(\mathrm{Ag}\)

Which elements are not main-group elements? (a) \(\mathrm{Al}\) (b) \(\mathrm{Br}\) (c) Mo (d) \(\mathrm{Cs}\) (e) \(\mathrm{Pb}\)

Which elements are alkaline earth metals? (a) rubidium (b) tungsten (c) magnesium (d) cesium (e) beryllium

Which elements are alkali metals? (a) barium (b) sodium (c) gold (d) tin (e) rubidium

Which elements are alkali metals? (a) scandium (b) iron (c) potassium (d) lithium (e) cobalt

Classify each element as a halogen, a noble gas, or neither. (a) \(\mathrm{Cl}\) (b) \(\mathrm{Kr}\) (c) \(\mathrm{F}\) (d) Ga (e) \(\mathrm{He}\)

Classify each element as a halogen, a noble gas, or neither. (a) \(\mathrm{Ne}\) (b) \(\mathrm{Br}\) (c) \(\mathrm{S}\) (d) \(X_{\mathrm{e}}\) (e) I