There’s 1,000 grams per liter. I’ll help you out by giving you the formula.
0.50L over 5.00 M= 1,000grams over one liter
A radioactive element is subject to spontaneous degeneration of its nucleus. All elements with atomic numbers greater than 83 are radioactive. Examples are radium, thorium, and uranium.
Hope this helps :)
alpha decay is an emission of ₂⁴He
nucleus. If an element undergoes an alpha decay, the mass of the daughter
nucleus formed is reduced by 4 compared to mass of parent atom and atomic
number is reduced by 2 compared to atomic number of parent atom.
Let's assume that the parent atom is X, atomic number is z and mass number is A. Then the formed daughter nucleus, Y should have atomic number as z-2 and mass number as A-4.
The equation is
(z) (A)X → ₂⁴α + (z-2)(A-4)Y
Example:
₉₄²³⁹Pu → ₂⁴α + ₉₂<span>²³⁵U</span>
Answer:
2K+2H2O=2KOH+H2
Explanation:
Try to ensure there is same number of reactants as products