2 the total of the subscripts atomic numbers in the

2. The total of the subscripts (atomic numbers, ) in the reactants and products must be the same
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α β γ α
α β β γ
α He
4
2
β e
0
−1
γ
α α
γ
α β γ
α β γ
X
A
Z
X A Z
A
Z
It has the weakest penetrating
power.
It is symbolized as .
He 4
2
It is the most massive of all the
components.
It is a high-speed
electron.
It is symbolized as .
e
0
−1
It possesses neither mass nor charge.
It has the strongest penetrating power.
Intermolecular Forces & Nuclear Chemistry Workshop Activity - Ap...
...
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4/29/2021, 12:54 PM

Part A
What is the value of in the following nuclear reaction?
U→ Th + X 238
Express your answer as an integer.
Hint 1. How to approach the problem
Use rule 1: The total of the superscripts (mass numbers, ) in the reactants and products must be the same. Mathematically, this can be written
as
ANSWER:
Correct
Part B
What is the value of in the following nuclear reaction?
A
U→ Th + X 238
92
234
90
A
Z
A
238 = 234 + A
4
A =
Z
Intermolecular Forces & Nuclear Chemistry Workshop Activity - Ap...
...
Express your answer as an integer.
Hint 1. How to approach the problem
Use rule 2: The total of the subscripts (atomic numbers, ) in the reactants and products must be the same. Mathematically, this can be written
as
ANSWER:
92 = 90 + Z
2
Z =
Correct
Part C
What chemical symbol should be used for in the following nuclear reaction?
U→ Th + X
238
92
234
90
Z
92 = 90 + Z
2
Z =
X
U→ Th + X
238
92
234
90
Enter the chemical symbol of the element.
Hint 1. How to approach the problem
Use the atomic number, , and the periodic table to identify the element. For example, the element with is carbon. For this problem you are
looking for the element with .
.
Chapter 21 Algorithmic Question 2
13 of 32
4/29/2021, 12:54 PM

Part A
During which type of radioactive decay is the mass of the emitted particle the smallest ?
Correct
Chapter 21 Algorithmic Question 4