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What happens to an atom when it emits an alpha particle?

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 8Q Chapter 17

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 8Q

Problem 8Q

What happens to an atom when it emits an alpha particle?

Step-by-Step Solution:
Step 1 of 3

Solution 8Q:

Alpha particle is consist of two protons and two neutrons and combined are identical to a helium-4 nucleus. The symbol for alpha radiation is the symbol for helium-4 is 42He

When an atom emits an alpha particle, the mass number decreases by 4 and the atomic number decreases by 2, resulting a new element which is two places lower in the Periodic Table than the original element.

For example:

 92U23890Th234 + 42He

Here, U-238 decreases its mass number by 4 and atomic number by 2 when it emits an alpha particle and formed a new element Th-234 which is two lower than U-238 in the periodic table.

Step 2 of 3

Chapter 17, Problem 8Q is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. The answer to “What happens to an atom when it emits an alpha particle?” is broken down into a number of easy to follow steps, and 11 words. Since the solution to 8Q from 17 chapter was answered, more than 362 students have viewed the full step-by-step answer. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This full solution covers the following key subjects: alpha, atom, emits, happens, particle. This expansive textbook survival guide covers 19 chapters, and 2046 solutions. The full step-by-step solution to problem: 8Q from chapter: 17 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM.

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What happens to an atom when it emits an alpha particle?