Understanding the atomic number as the count of protons and the nuclear charge clarifies the identity of an element, making it the fundamental defining feature of an atom.
Neutral atom: An atom with an equal number of protons and electrons, resulting in no overall electric charge.
1. How do the atomic number and the charge on the nucleus compare?
2. How can you determine the net electric charge of an atom that has gained or lost electrons in practice?
3. What does the term 'ion' specifically refer to in atomic and molecular terms?
Atomic number — definition?
Number of protons in an atom's nucleus.
Electrons vs protons — balance?
Equal electrons and protons make a neutral atom.
Ion formation — mechanism?
Gaining or losing electrons creates charged ions.
Atomic mass — components?
Sum of protons and neutrons in nucleus.
Isotopes — difference?
Same element, different neutrons and mass.
Energy levels — electrons?
Electrons occupy discrete energy states.
It covers the core concepts of Fundamentals of Atomic Structure, organized by topic with the key definitions, explanations and takeaways, so it's easier to learn and remember.
Read the full study guide →The practice quiz has 9 multiple-choice questions, each with an explanation. Use it to check what you know and find your gaps.
Take the quiz (9 questions) →There are 18 flashcards on Fundamentals of Atomic Structure, with a question on the front and the answer on the back. Try to recall each answer before you flip, and let spaced repetition bring back the ones you miss.
See all 18 flashcards →Upload a PDF or paste your notes. Revizly writes a study guide, a practice quiz and flashcards in about a minute.