Question

Which of the following describes the difference between nitrogen-14 and nitrogen-15? ( point)

Nitrogen-14 has 14 electrons, 14 protons, and 14 neutrons; nitrogen-15 has 15 electrons, 15 protons, and 15 neutrons
Nitrogen-14 has 7 electrons, 7 protons, and 7 neutrons, nitrogen-15 has 8 electrons, 8 protons, and 8 neutrons
Nitrogen-14 has 14 electrons, 14 protons, and 14 neutrons, nitrogen-15 has 14 electrons, 14 protons, and 15 neutrons
Nitrogen-14 has 7 electrons, 7 protons, 7 neutrons nitrogen-15 has 7 electrons, 7 protons, and 8 neutrons,

Answer 1

D. Nitrogen-14 has 7 electrons, 7 protons, 7 neutrons nitrogen-15 has 7 electrons, 7 protons, and 8 neutrons

Step-by-step explanation:

In an atom, number of electrons is equal to the number of protons. And the number of neutrons is equal to the difference between the mass number of the atom and the atomic number. For Nitrogen 14, electron is 7, proton is also 7 as number of electrons and number of protons are equal. So, the neutron will be 14-7= 7. For Nitrogen 15, electron number is 7 so proton number will be also 7. Neutron number for nitrogen 15 will be 15-7= 8. That's why the answer is option number 4.