Bohr Models and Atomic Structure

These particles are found in the nucleus of the atom.

• protons only

• protons and electrons

• electrons only

• protons and neutrons

How many neutrons would you expect the average gold atom to have given the information shown?

• 79

• 118

• 197

• 276

The section labeled D is known as the?

• Electron cloud
• Neutron
• Nucleus
• Electron

What is the atomic number of this atom?

• 2
• 4
• 6
• none of the above

What is the mass number of this atom?

• 1
• 3
• 4
• 7

Name this element.

• Neon

• Magnesium

• Sodium

• Manganese

If an atom of Sodium has a mass number of 23, it will have...

• 23 protons

• 11 neutrons

• 12 protons

• 12 neutrons

Which scientist developed this model?

• Dalton

• Thomson

• Rutherford

• Bohr

What is the identity of this element?

• Aluminum

• Silicon

• Cobalt

• Chlorine

What is the mass number of this atom?

• 15

• 16

• 31

• 32