At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Experience the convenience of finding accurate answers to your questions from knowledgeable professionals on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

An element is soft and can be cut easily
with a knife. It is very reactive and cannot
be kept open in the air. It reacts vigorously
with water. This element is most likely to
be:
(a) magnesium
(b) potassium
(c) phosphorus
(d) sodium


Sagot :

Final answer:

Potassium is the correct answer choice due to its softness, high reactivity, and vigorous reaction with water.


Explanation:

Potassium is the element described. It is a soft, highly reactive alkali metal that can be cut easily with a knife and reacts vigorously with water. Potassium must be stored under mineral oil to prevent reactions with air or water.


Learn more about Alkali Metals here:

https://brainly.com/question/5063184


Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We hope this was helpful. Please come back whenever you need more information or answers to your queries. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.