The Atom

Which of the following is a positively charged subatomic particle found in the nucleus of an atom?

• Electron
• Proton
• Neutron
• Quark

Which of the following is a subatomic particle with no charge that is found in the nucleus of an atom?

• Electron
• Proton
• Neutron
• Quark

Which of the following is a negatively charged subatomic particle?

• Electron
• Proton
• Neutron
• Quark

Which of the following includes all of the subatomic particles found in the nucleus of an atom?

• Electrons and protons
• Electrons, protons, and neutrons
• Neutrons and electrons
• Protons and neutrons

An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?

• 15
• 31
• 16
• 47

An atom has an atomic number of 30 and a mass number of 65. How many neutrons are in the atom?

• 30
• 65
• 35
• 95

Atoms are the ______ building blocks

• Largest
• Smallest

A particle that moves around the nucleus is a(n)   .

• proton
• ion
• neutron
• electron

An atom has 10 protons and a mass of 18. It has __ neutrons

• 10
• 18
• 28
• 8

The __________________ is the sum of the protons and the neutrons in an atom.

• Atomic Number
• Mass Number
• Protons
• Neutrons