Midterm Practice Ortego Part 1

Which subatomic particle has a positive charge?

• Neutron

• Proton

• Electron

• Neutrino

The nucleus of an atom contains:

• Electrons and protons

• Neutrons and electrons

• Protons and neutrons

• Electrons only

What determines the atomic number of an element?

• The number of neutrons

• The number of electrons

• The number of protons

• The total number of subatomic particles

Which subatomic particle has the smallest mass?

• Proton

• Neutron

• Electron

• Alpha particle

If an atom has 12 protons, what element is it?

• Carbon

• Magnesium

• Oxygen

• Sodium

Tags

NGSS.MS-PS1-1

When an atom gains an electron, it becomes:

• A cation

• An anion

• A neutral atom

• A proton

• It has gained a proton.

• It has lost a neutron.

• It has lost an electron.

• It has gained an electron.

Which of the following is an isotope of carbon?

• All of the above

• Same number of neutrons

• Same number of electrons

• Same number of protons

• Same atomic mass

• 11 protons, 11 neutrons, 12 electrons

• 12 protons, 11 neutrons, 11 electrons

• 11 protons, 12 neutrons, 11 electrons

• 12 protons, 12 neutrons, 11 electrons

Tags

NGSS.MS-PS1-1