Question

which element is a metal?
k
si
p
kr
more than one of the elements is a metal.

Explanation:

To determine which element is a metal, we analyze each option:

• K (Potassium) is an alkali metal, belonging to the group of metals.
• Si (Silicon) is a metalloid, having properties between metals and non - metals.
• P (Phosphorus) is a non - metal.
• Kr (Krypton) is a noble gas, which is a non - metal.

So only K is a metal.

Answer:

A. K