Proton Chemistry Example 3
Follow the full solution, then compare it with the other examples linked below.
Example 3
easyHow many protons are in an atom of potassium (K, atomic number 19)?
Solution
- 1 The atomic number gives the number of protons directly.
- 2 Potassium has atomic number 19, so it has 19 protons.
Answer
The atomic number is always equal to the proton count. This is the defining characteristic of each element.
About Proton
A positively charged subatomic particle found in the nucleus of every atom, with a charge of and a mass of approximately 1 atomic mass.
Learn more about Proton →More Proton Examples
Example 1 easy
A sulfur atom has 16 protons. What is its atomic number, and how does the number of protons relate t
Example 2 mediumThe mass of a single proton is approximately [formula] g. How many protons would it take to have a c
Example 4 mediumWhy doesn't sodium turn into magnesium during an ordinary chemical reaction, even if electrons are l