The Atom & Periodic Table Review

Which of these elements has the greatest average atomic mass?

• B

• C

• N

• Al

Which of these elements has an atomic number of 14?

• N

• Al

• Si

• P

The diagram above shows a block from the periodic table. The number six represents the -

• atomic mass of the element carbon

• atomic number of the element carbon

• number of neutrons in the element carbon

• number of valence electrons element carbon

In this atomic model, point A represents -

• a proton

• a nucleus

• a neutron

• an electron

In this atomic model, point B represents -

• a proton

• a nucleus

• a neutron

• an electron

In this atomic model, point C represents -

• a proton

• a nucleus

• a neutron

• an electron

In this atomic model, point D represents -

• a proton

• a nucleus

• a neutron

• an electron

Which of these have a positive charge and are found in the nucleus of an atom?

• Neutrons

• Protons

• Electrons

• Elements

The atom is composed of electrons, protons, and neutrons. What is the electric charge on the neutron?

• 1

• -1

• 0

• 2

Groups are arrange in what direction on the Periodic Table?

• Vertically (up and down like columns)

• Horizontally (side to side)

• Diagonally ( from upper to lower corner)

• Both vertically and horizontally