Question

question 8
1 pts
what is the state of matter for each of the following elements at 25 c and normal pressure?
si select
hg select
k select
f2 select

Explanation:

Step1: Recall silicon properties

Silicon (Si) is a solid at 25°C and normal pressure. It is a metalloid with a high - melting point.

Step2: Recall mercury properties

Mercury (Hg) is the only metal that is liquid at room temperature (25°C) and normal pressure.

Step3: Recall potassium properties

Potassium (K) is a solid metal at 25°C and normal pressure. It is a soft, silvery - white alkali metal.

Step4: Recall fluorine properties

Fluorine ($F_2$) is a highly reactive non - metal and exists as a gas at 25°C and normal pressure.

Answer:

Si: Solid
Hg: Liquid
K: Solid
$F_2$: Gas