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.

How many neutrons are in one atom of this element?

• 29

• 35

• 64

• 33

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

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

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

In an atom, what is the number of protons equal to?

• The number of electrons.
• The number of neutrons.
• The number of molecules.
• The number of nuclei.

The negatively charged particles of an atom are the ______.

• electrons
• protons
• neutrons
• protons & neutrons

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center