The decay product represented by X : Thorium (Th) : ²³⁴₉₀Th
<h3>Further explanation</h3>
Given
Decay reaction
²³⁸₉₂U ⇒ ⁴₂He + X
Required
The decay product
Solution
Radioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,
- alpha α particles ₂He⁴
- beta β ₋₁e⁰ particles
- gamma particles ₀γ⁰
- positron particles ₁e⁰
- neutron ₀n¹
In a decay reaction, <em>the sum of the mass number and atomic number of the elements in the reactants and products must be the same</em>
So the mass number of the element X = 238 - 4 = 234
Atomic number of the element X = 92 - 2 = 90
If we look at the periodic system, then the element with atomic number 90 is Thorium (Th)
I think there are about four compounds that are listed above that are soluble in water. These are NaOH, MgSO4, MgCO3 and Ba(NO3)2. <span>In chemistry, solubility of a substance is a quantitative term that refers to the amount of substance that can dissolve in a given volume of a solvent.</span>
Answer: 8 x 10^12
Explanation:
The prefix tera means 10^12. Each byte is 8 bits, so a terabyte is 8 x 10^12 bits.
