
Concept explainers
Interpretation:
The number of protons, neutrons, and the ratio of neutrons to protons for each of the noble gas areto be determined. Any general trend discovered in this changes is to be described.
Concept introduction:
The
Mass number
The atomic number together with themass number of the
Here, A is the mass number
The number of neutrons is calculated by the relation:
Here, A is mass number and Z is atomic number.

Answer to Problem 105AP
Solution:
For
The neutrons to protons ratio of
Explanation of Solution
(a) The number of protons and neutrons in the nucleus of each atom
The atomic number and mass number of the element X are represented as follows:
Here, A is the mass number
The number of protons and neutrons in
The number of protons is equal to the atomic number
The atomic number is
The number of neutrons
The mass number is
The number of protons and neutrons in
The number of protons is equal to the atomic number
The atomic number is
The number of neutrons
The mass number is
The number of protons and neutrons in
The number of protons is equal to the atomic number
The atomic number is
The number of neutrons
The mass number is
The number of protons and neutrons in
The number of protons is equal to the atomic number
The atomic number is
The number of neutrons
The mass number is
The number of protons and neutrons in
The number of protons is equal to the atomic number
The atomic number is
The number of neutrons
The mass number is
b) The ration of neutrons to protons in the nucleus of each atom
1. The ratio of neutrons to protons in
The number of protons is
2. The ratio of neutrons to protons in
The number of protons is
3. The ratio of neutrons to protons in
The number of protons is
4. The ratio of neutrons to protons in
The number of protons is
5. The ratio of neutrons to protons in
The number of protons is
The general trend concluded from the neutrons to protons ratio is that the as the atomic number Z increases, the ratio of neutrons to protons also increases.
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Chapter 2 Solutions
Chemistry
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