____________ rays show areas where large quantities of energy are released.
1 answer:
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Answer:
The new element will be thorium-226 (²²⁶Th).
Explanation:
The beta decay is given by:
Where:
A: is the mass number
Z: is the number of protons
β⁻: is a beta particle = electron
: is an antineutrino
The neutral atom has 88 electrons, so:
Hence the element is radium (Ra), it has A = 226.
If Ra undergoes 2 rounds of beta minus decay, we have:
Therefore, if a neutral atom with 88 electrons undergoes 2 rounds of beta minus decay the new element will be thorium-226 (²²⁶Th).
I hope it helps you!
Answer:
<h3>The answer is 27.80 mL</h3>Explanation:
The volume of a substance when given the density and mass can be found by using the formula
From the question
mass = 87.3 g
density = 3.14 g/mL
We have
We have the final answer as
<h3>27.80 mL</h3>Hope this helps you
