Question

version a

1. which property is most commonly associated with non - metals?

a. good electrical conductivity
b. shiny surfaces
c. high malleability
d. low melting and boiling points
e. all of the above

1. which of the following is a chemical property of metals?

a. they are ductile.
b. they are malleable.
c. they form positive ions when reacting with non - metals.
d. they have high density.
e. all of the above

Explanation:

Step1: Analyze non - metal properties

Non - metals generally have poor electrical conductivity, so option a is a non - metal property. Shiny surfaces are characteristic of metals, not non - metals, so b is not a non - metal property. High malleability is a metal property, not non - metal, so c is wrong. Low melting and boiling points are often associated with non - metals, so d is a non - metal property.

Step2: Determine the answer for 13

Since a and d are non - metal properties, the answer for 13 is e.

Step3: Analyze metal chemical properties

Ductility and malleability are physical properties of metals, not chemical properties, so a and b are wrong. The formation of positive ions when reacting with non - metals is a chemical property as it involves a chemical reaction and change in the electronic structure of the metal. High density is a physical property.

Step4: Determine the answer for 14

The chemical property among the options is that they form positive ions when reacting with non - metals, so the answer for 14 is c.

Answer:

1. e. All of the above
2. c. they form positive ions when reacting with non - metals