The Atom

Where are electrons of an atom found?

• Nucleus
• Electron Cloud
• Some are in the nucleus and some in the electron cloud.
• They are moving everywhere.

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

• Electron
• Proton
• Neutron
• Quark

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

What carries no charge 

• Neutrons
• Electrons
• Protons

Which is the smallest?

• electron
• proton
• atom
• neutron 

An atom has 5 protons and 7 neutrons. What is the mass number of the atom?

• 5
• 7
• 2
• 12

_{What is in the nucleus of an atom?}

• Neutrons and protons 
• Protons
• Protons and Electrons
• Electrons and Nuetrons

The first energy level can hold up to how many electrons?

• 8
• 4
• 2
• 5

Parts of the atom that determine the identity of the atom (what kind of atom it is)

• Protons

• Neutrons

• Electrons

Parts of the atom that are the smallest of the three subatomic particles

• Protons

• Neutrons

• Electrons