Of Uranium-235 remains after 2.8 x 10^9 years, what was the original mass of the sample of Uranium-235? The half-life of Uranium-235 is 7.0 x 10^8 years. Uranium-232 has a half life of 68.8 years.
It could be 67.628 ounces but i dont fully know the question
Elements in the same group in the periodic table have similar chemical properties. Hydrogen and Lithium, who both belong to alkali metal group, have the same chemical properties.
Answer:
a liquid
Explanation:
I'm not for sure but I just looked it up