Solve this riddle: I am an atom with a mass number of 23 and 11 protons. I am a soft metal and react vigorously with water. Who am I and how many neutrons do I have? You can also create one such riddle.
(Number of neutrons) 12
(Riddle) I am an atom with a mass number of 7 and 3 protons. Who am I and how many neutrons do I have?
(Who am I) Sodium
Explanation
The atom has 11 protons, which means its atomic number is 11. Based on the riddle's description of being a soft metal that reacts vigorously with water, the element is Sodium.
To find the number of neutrons, we use the formula: Mass number = Number of protons + Number of neutrons. Substituting the given values: 23 = 11 + Number of neutrons. Therefore, the atom has 12 neutrons.
Here is a similar riddle: I am an atom with a mass number of 7 and 3 protons. Who am I and how many neutrons do I have? (Answer: Lithium, 4 neutrons).
Solution Steps
Step 1: Identify the element using the number of protons (atomic number = 11) and its properties (Sodium).
Step 2: Calculate the number of neutrons using Mass number = Protons + Neutrons; 23 = 11 + Neutrons; Neutrons = 12.
Step 3: Create a riddle using data from the context, such as Lithium (3 protons, mass number 7).