You are planning an investigation that explores properties of matter. Which of the following will help you discover a physical property?

Experiment: place a powder into a beaker that contains a liquid

Result: the beaker gets hotter

Experiment: place a powder into a beaker that contains a liquid

Result: the solid dissolves into the liquid

Experiment: place a powder into a beaker that contains a liquid

Result: the mixture begins to fizz and bubble

Experiment: place a powder into a beaker that contains a liquid

Result: the mixture catches fire and burns down the lab

Placing a powder into a beaker that contains liquid, resulting the beaker to get hotter.

Explanation:

Physical property is something that you can observe that does not affect the mixture/solution/substance, and that includes temperature

elements make up everything, and they combine to make compounds.

the answer is c

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.