Question

How is the mass number of an atom calculated? (1 point)
Responses

electrons plus neutrons
electrons plus neutrons

total number of protons
total number of protons

protons plus neutrons
protons plus neutrons

total number of electrons
Answer
Which atom would be neutral?(1 point)
Responses

an oxygen atom with 16 electrons, 18 protons, and 16 neutrons
an oxygen atom with 16 electrons, 18 protons, and 16 neutrons

an oxygen atom with 4 electrons, 6 protons, and 4 neutrons
an oxygen atom with 4 electrons, 6 protons, and 4 neutrons

an oxygen atom with 8 electrons, 8 protons, and 9 neutrons
an oxygen atom with 8 electrons, 8 protons, and 9 neutrons

an oxygen atom with 9 electrons, 8 protons, and 8 neutrons
Answer
A nitrogen ion has a mass of 14 and a charge of +2. Which subatomic particles does it contain?(1 point)
Responses

2 protons, 6 neutrons, and 6 electrons
2 protons, 6 neutrons, and 6 electrons

7 protons, 7 neutrons, and 5 electrons
7 protons, 7 neutrons, and 5 electrons

7 protons, 7 neutrons, and 9 electrons
7 protons, 7 neutrons, and 9 electrons

4 protons, 4 neutrons, and 6 electrons
Answer
Which option is an isotope with 6 protons and 8 neutrons? (1 point)
Responses

carbon-8
carbon-8

oxygen-14
oxygen-14

carbon-14
carbon-14

oxygen-6
Answered by GPT 3.5
protons plus neutrons
Answered by GPT 3.5
an oxygen atom with 8 electrons, 8 protons, and 8 neutrons
Answered by GPT 3.5
7 protons, 7 neutrons, and 5 electrons
Answered by GPT 3.5
carbon-14