Question

1. choose all that apply. which two are properties of all metals? good conductor of heat and electricity malleable hard dull antimony (sb) copper (cu) arsenic (as) silicon (si) nickel (ni) boron (b) polonium (po) germanium (ge) tellurium (te) astatine (at)

Explanation:

For question 2, metalloids are elements with properties between metals and nonmetals; the 8 recognized metalloids are boron, silicon, germanium, arsenic, antimony, tellurium, polonium, and astatine. For question 3, all metals are good conductors of heat/electricity and malleable; hardness and dullness are not universal metal properties.

Answer:

2.

• boron (B)
• silicon (Si)
• germanium (Ge)
• arsenic (As)
• antimony (Sb)
• tellurium (Te)
• polonium (Po)
• astatine (At)

3.

• good conductor of heat and electricity
• malleable