Lawrie Ryan and Roger Norris Solutions for Chapter: Atomic Structure, Exercise 8: EXAM-STYLE QUESTIONS
Lawrie Ryan Chemistry Solutions for Exercise - Lawrie Ryan and Roger Norris Solutions for Chapter: Atomic Structure, Exercise 8: EXAM-STYLE QUESTIONS
Attempt the free practice questions on Chapter 1: Atomic Structure, Exercise 8: EXAM-STYLE QUESTIONS with hints and solutions to strengthen your understanding. Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years) solutions are prepared by Experienced Embibe Experts.
Questions from Lawrie Ryan and Roger Norris Solutions for Chapter: Atomic Structure, Exercise 8: EXAM-STYLE QUESTIONS with Hints & Solutions
Explain the terms atomic number and nucleon number.
Complete the table:
| Neutral atom | Atomic number | Nucleon number | Number of each sub-atomic particle present |
| 12 | 24 | ||
| 13 | 27 |
Explain why atoms are neutral.
An oxygen atom has 8 protons in its nucleus. Explain why it cannot have 9 protons.
When deducing the relative mass of an atom, the electrons are not used in the calculation. Explain why not.
The table below shows the two naturally occurring isotopes of chlorine. Complete the table:
| number of protons | ||
| number of electrons | ||
| number of neutrons |
The relative atomic mass of chlorine is 35.5. What does this tell you about the relative abundance of the two naturally occurring isotopes of chlorine?
Magnesium chloride contains magnesium ions, , and chloride ions, .
i) Explain why a magnesium ion is positively charged.
ii) Explain why a chloride ion has a single negative charge.
