Question
Which statement correctly explains the composition of the nucleus of Rubidium-87?
A
Rubidium-87 has 37 protons and 37 electrons.
B
Rubidium-87 has 37 protons and 37 neutrons.
C
Rubidium-87 has 37 protons and 50 electrons.
D
Rubidium-87 has 37 protons and 50 neutrons.
A
Rubidium-87 has 37 protons and 37 electrons.
B
Rubidium-87 has 37 protons and 37 neutrons.
C
Rubidium-87 has 37 protons and 50 electrons.
D
Rubidium-87 has 37 protons and 50 neutrons.
Answers
GPT-4o mini
The correct statement that explains the composition of the nucleus of Rubidium-87 is:
**D) Rubidium-87 has 37 protons and 50 neutrons.**
Rubidium (Rb) has an atomic number of 37, which means it has 37 protons. The mass number of Rubidium-87 is 87, which is the sum of protons and neutrons in the nucleus. Since Rubidium-87 has 37 protons, the number of neutrons can be calculated as follows:
Neutrons = Mass number - Protons = 87 - 37 = 50
Therefore, Rubidium-87 has 37 protons and 50 neutrons.
**D) Rubidium-87 has 37 protons and 50 neutrons.**
Rubidium (Rb) has an atomic number of 37, which means it has 37 protons. The mass number of Rubidium-87 is 87, which is the sum of protons and neutrons in the nucleus. Since Rubidium-87 has 37 protons, the number of neutrons can be calculated as follows:
Neutrons = Mass number - Protons = 87 - 37 = 50
Therefore, Rubidium-87 has 37 protons and 50 neutrons.