Question

select the answer from the menu.
copper, silver, and nickel are all classified as
noble gases
transition metals
halogens
nonmetals

Explanation:

To determine the classification of copper, silver, and nickel, we analyze each option:

• Noble gases are non - reactive gases (e.g., He, Ne), so this is incorrect.
• Halogens are non - metals (e.g., F, Cl), so this is incorrect.
• Nonmetals are elements like C, N, O, so this is incorrect.
• Transition metals are in the d - block of the periodic table, and copper (Cu), silver (Ag), nickel (Ni) are all d - block elements, so they are transition metals.

Answer:

transition metals