Multiple Choice
What are the atomic number and mass number for the carbon isotope with seven neutrons?
224
views
2. Atoms & Elements
Isotopes
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many neutrons does the isotope nitrogen-15 have?
A
7
B
8
C
15
D
14
Verified step by step guidance1
Identify the atomic number of nitrogen, which is 7. This number represents the number of protons in the nucleus of a nitrogen atom.
Understand that the mass number of an isotope is the sum of its protons and neutrons. For nitrogen-15, the mass number is 15.
Use the formula: \( \text{Number of neutrons} = \text{Mass number} - \text{Atomic number} \).
Substitute the known values into the formula: \( \text{Number of neutrons} = 15 - 7 \).
Calculate the result to find the number of neutrons in nitrogen-15.
Related Videos
Related Practice
