4 Balancing Nuclear Equations

4 Balancing Nuclear Equations

Assessment

Flashcard

Chemistry

11th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is alpha decay?

Back

Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (2 protons and 2 neutrons), resulting in a new element with a lower atomic number.

2.

FLASHCARD QUESTION

Front

What is an alpha particle?

Back

An alpha particle is a type of subatomic particle consisting of 2 protons and 2 neutrons, identical to a helium nucleus.

3.

FLASHCARD QUESTION

Front

How does alpha decay affect the atomic number of an element?

Back

Alpha decay decreases the atomic number of an element by 2.

4.

FLASHCARD QUESTION

Front

How does alpha decay affect the mass number of an element?

Back

Alpha decay decreases the mass number of an element by 4.

5.

FLASHCARD QUESTION

Front

What is the general form of an alpha decay equation?

Back

The general form is: \( _{Z}^{A}X \rightarrow _{Z-2}^{A-4}Y + _{2}^{4}He \)

6.

FLASHCARD QUESTION

Front

Given the equation: \( _{209}^{85}At \rightarrow ? + _{2}^{4}He \), what is the missing element?

Back

The missing element is \( _{205}^{83}Bi \).

7.

FLASHCARD QUESTION

Front

If an element \( _{50}^{24}X \) undergoes alpha decay, what is the resulting element?

Back

The resulting element is \( _{46}^{22}Y \).

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