Question

use the periodic table to select the element that best fits each of the following descriptions. which element below has properties of both metals and nonmetals? zinc aluminum copper boron which element below is the most reactive? oxygen hydrogen chlorine neon

Explanation:

Elements along the staircase - like line on the periodic table are metalloids which have properties of both metals and non - metals. Boron is a metalloid. Among the given elements for reactivity, chlorine is a halogen and highly reactive as it needs one electron to complete its outer shell. Oxygen is reactive but less than chlorine among these options. Hydrogen is relatively stable in its elemental form under normal conditions and neon is a noble gas and very unreactive.

Answer:

1. Which element below has properties of both metals and nonmetals?

Boron

1. Which element below is the most reactive?

Chlorine