Question

You are given a pure substance that is shiny, hard and has a relatively high density, this substance is likely a ?

A- metalloid
B- nonmetal
C- metal
D- lanthanide

Answer 1

metal

Step-by-step explanation

A)

metalloid

Metalloids have properties intermediate between the metals and nonmetals.

They have low density and will melt at low temperatures. They can be shiny or dull.

B)

nonmetal

Non-metals are very brittle and dull. They have low density (they feel light for their size) and of weak strength

C)

metal

metals are silvery looking, high density and hard in its physical appearance.

D)

lanthanide

The lanthanides have a bright silvery appearance. They are soft, they can be cut with a knife.