Radium and polonium is the answer to this question. I hope I helped out!
Answer:
Opaque → a.no light travels through the material; all light is reflected or absorbed
Translucent → b.some light travels through the material and the image cannot be seen clearly
Transparent → c.all light travels through the material and the image can be seen clearly
Explanation:
Hope this helps :)
Answer: Most people think positively about chemistry. Chemistry has had a good impact on the world, such as the impact of renewable energy, clean water, and technology.
Explanation:
Hope this was helpful :)
It is <span>the attraction of an SO42– ion </span>
