How do carbon-12 and carbon-13 differ?
(select all that apply)
they have different amount of electrons
they have different amount of neutrons
they have different atomic charges
they have different mass numbers
I know one of them is b
please help
Sure! I can help you with that.
Carbon-12 and carbon-13 are isotopes of the element carbon. Isotopes of an element have the same number of protons but different numbers of neutrons in their nuclei.
To determine the differences between carbon-12 and carbon-13, let's go through each statement:
1. They have different amounts of electrons:
- This statement is false. Isotopes have the same number of electrons since they have the same number of protons, and the number of electrons in an atom is equal to its atomic number. Therefore, carbon-12 and carbon-13 have the same number of electrons.
2. They have different amounts of neutrons:
- This statement is true. Carbon-12 has 6 neutrons, while carbon-13 has 7 neutrons. So, they differ in the number of neutrons they possess.
3. They have different atomic charges:
- This statement is false. The atomic charge of an atom is determined by the number of protons, which is the same for both carbon-12 and carbon-13. So, they have the same atomic charge.
4. They have different mass numbers:
- This statement is true. The mass number of an isotope is the sum of its protons and neutrons. Carbon-12 has a mass number of 12 (6 protons + 6 neutrons), while carbon-13 has a mass number of 13 (6 protons + 7 neutrons). Hence, they have different mass numbers.
Considering the options, the correct answers are:
- They have a different amount of neutrons (correct)
- They have a different mass number (correct)
Therefore, the correct options are b and d.
Yes, one is b.
Here's what you need to know.'
mass number = # protons + # neutrons.