Atom Structure

Something that takes up space and has mass.

• volume
• matter
• mass
• density

A measure of how much mass is contained in a given unit of volume.

• mass
• density
• volume
• matter

The amount of space something takes up

• density
• volume
• mass
• matter

You can measure ______ with grams.

• mass
• volume
• conductivity
• melting point

Volume is ______________.

• length X width
• height X length
• length X width X height
• width X height

Which statement correctly describes the location and charge of the neutrons in an atom?

• The neutrons are inside the nucleus and have a positive charge.

• The neutrons are outside the nucleus and have a neutral charge.

• The neutrons are outside the nucleus and have a negative charge.

• The neutrons are inside the nucleus and have a neutral charge.

An atom of a certain element has 11 electrons, and a mass number of 23. This element is very reactive in room temperature. How many neutrons are in this atom?

• 11

• 12

• 33

• 23

What type of particles are found in the cloud surrounding the atom's nucleus?

• Neutral particles and positively charge particles

• Positive charge particles only

• Negatively charge particles and positively charge particles

• Negatively charge particles only

Which of the following best describes a proton?

• It has a positive charge and the same mass as an electron

• It has a neutral charge and the same mass as an neutron

• It has a positive charge and the same mass as an neutron

• It has a negative charge and the same mass as an electron

What is the charge of an electron?

• Positive

• Negative

• Neutral

• None of the above