How many valence electrons does an ion with 15 protons have?
This element is phosphorus and it has five valence electrons.
Two methods exist for us to ascertain this: first, phosphorus is the element with 15 protons, or atomic number 15. Phosphorus belongs to group 15/VA, and all elements in that group have 5 valence electrons.
By signing up, you agree to our Terms of Service and Privacy Policy
An ion with 15 protons, corresponding to the element phosphorus (P), would have five valence electrons.
By signing up, you agree to our Terms of Service and Privacy Policy
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- What is the trend in atomic radius as you go across a period?
- How can a periodic table be used to determine the charge of an ion?
- How are the elements differentiated? And how many protons occur in hydrogen, helium, and lithium?
- How many valence electrons does iron have?
- What is the chemical name of iron?

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7