1. They were both discovered by Marie and Pierre Curie.
2. They can both poison you.
3. Radium is named after the Latin word for "Ray"
4. Polonium is named after Poland, the country in which Marie Curie was born.
5. Marie and Pierre Curie obtained radium and polonium from pitchblende, a material containing uranium.
6. Polonium was discovered in 1898.
7. Radium was discovered in 1898 as well.
8. Radium and polonium are both elements on the periodic table.
9. Polonium is also called "radium F".
10. Both radium and polonium must be handled very carefully with good equipment, or their toxic fumes could spread and possibly be fatal.
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Answer:
The electrons in an atom move around the nucleus in regions known as electron shells.
Answer:
B, C
Explanation:
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Answer:
B) One way of solving this is to use dimensional analysis and cancel out grams to find volume.
A) density over mass is volume. Mass is 84.7 g and volume is 49.6 cm cubed
Explanation:
Answer:
Explanation:
Hello,
In this case, for the natural occurring isotopes we equal the average atomic mass via:
Thus, since both percentages of abundance must turn out 100%, we can write:
So we can write:
Solving for the percentage of abundance of Rb-87:
Therefore, the percentage of abundance of Rb-85 turns out:
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