The daughter isotope (a decay product): Polonium (Po)
<h3>Further explanation</h3>
Radioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,
- beta β ₋₁e⁰ particles
- gamma particles γ
- positron particles ₁e⁰
Radon-222 emits alpha α particles ₂He⁴ , so the atomic number decreases by 2, mass number decreases by 4
Reaction
1. The mass number of the daughter isotope = 218
2 and 3. If we look at the periodic system, the element with atomic number 84 is Polonium (Po)
Answer:
5.50g (corrected to 3 significant figures)
Explanation:
mass = no. of moles x molar mass
molar mass of CO2 = (12.0107 + 15.999x2) =44.0087
Therefore, mass = 0.125 x 44.0087
= 5.50g (corrected to 3 significant figures)
Answer:
the vapor pressure of mercury at 322°C is 0.521 atm
Explanation:
Answer:
directly proportional to one another
Explanation:
Volatility refers to how quickly a substance changes from liquid to gas.
If a substance has a high vapour pressure, the substance is highly volatile. Similarly, if a substance has a low vapour pressure, then the substance is much less volatile.
This implies that volatility and vapour pressure gives a direct proportionality.
