Selenium (Se) is a nonmetal, germanium (Ge) is a metalloid, and silver (Ag) is a metal. Which of the following lists the elements in probable order from least malleable to most malleable

A. Se, Ge, Ag

B. Ge, Se, Ag

C. Ag, Ge, Se

D.Ag, Se, Ge

2. A chemist is looking at an electrically neutral atom that has three valence electrons. If she knows the element is a metalloid, which one (or ones) is it

A.Ge and As

B. B

C. Sb and Te

D. At

3.Which of the following lists the elements in order of increasing conductivity

A. He, Te, Tl

B. Te, He, Tl

C. Tl, He, Te

D. Tl, Te, He

4.Which of the following is a metalloid

A. Al

B .Ga

C. Sb

D. Sn