Question 2381
What is the typical charge on an ion formed by a halogen (Group 17)?
Question 2382
What is the typical charge on an ion formed by an element in Group 2?
Question 2383
How many valence electrons does an element in Group 15 typically have?
Question 2384
Why do noble gases generally have positive electron gain enthalpies?
Question 2385
What is the significance of a large difference between the first and second ionization enthalpies of an element?