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Solved: Determine whether each statement is true or false.

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

Solution for problem 84P Chapter 4

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 84P

Determine whether each statement is true or false. If false, correct it.

(a) The Fe2+ ion contains 29 protons and 26 electrons.

(b) The Cs+ ion contains 55 protons and 56 electrons.

(c) The Se2− ion contains 32 protons and 34 electrons.

(d) The Li+ ion contains 3 protons and 2 electrons.

Step-by-Step Solution:
Step 1 of 3

Solution 84P

Here, we are going to determine whether the given statements are true or false.

Step1:

A neutral atom always has equal number of protons and electrons, i.e., in a neutral atom,

Number of protons = number of electrons

Ions are formed by the loss or gain of electrons. An ion is a charged particle and can be negatively or positively charged. A negatively charged ion is called an ‘anion’ and is formed by gain of electrons and the positively charged ion is called a ‘cation’ and is formed by the loss of electrons.

The number of charges in the ion indicate the number of electrons lost or gained.

For example, Na+  has one positive charge. Here, the positive charge indicates loss of electron and the number of charge (1) indicates loss of one electron.  

Step2:

Now, let us determine whether the given statements are true or false.

The statement is false. The Fe2+ ion contains 26 protons and 24 electrons.

The atomic number of Fe is 26. This means that Fe atom has 26 protons. The two positive...

Step 2 of 3

Chapter 4, Problem 84P is Solved
Step 3 of 3

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

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Solved: Determine whether each statement is true or false.

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