Valency and Valence Electrons
Chemistry ⇒ Atomic Structure and the Periodic Table
Valency and Valence Electrons starts at 8 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Valency and Valence Electrons.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
An atom of chlorine has 7 valence electrons. What is its most likely valency?
Context: An atom has the electronic configuration 2, 8, 8, 1. What is its valency?
Context: An atom of phosphorus has the electronic configuration 2, 8, 5. What is its valency?
Context: An atom of sulfur has 6 valence electrons. What is its most likely valency?
Describe how the valency of an element is related to its ability to form chemical bonds.
Describe the difference between valency and valence electrons.
Explain why elements in the same group of the periodic table have similar chemical properties.
Explain why noble gases are generally unreactive in terms of their valence electrons.
Explain why sodium forms Na+ ions and not Na2+ ions.
How many valence electrons does an atom of oxygen (atomic number 8) have?
If an atom has 2 electrons in its outermost shell, what is its valency?
If an atom has 7 electrons in its outermost shell, what is its valency?
What is meant by the term 'valence electrons'?
