Ionization Energy 2

Which element has the greater ionization energy?

• Lead
• Silicon

Put the following in order of increasing ionization energy:Neon, Lithium, Carbon

• Lithium, Carbon, Neon
• Carbon, Lithium, Neon
• Neon, Carbon, Lithium
• Lithium, Neon, Carbon

As you look down a group, ionization energy and electronegativity

• increases

• decreases

What is ionization energy?

• Energy needed to destroy an atom
• Energy required to remove an electron
• Energy needed to split an electron
• Energy required to add an electron

The graph above shows the ionization energy values as the elements are arranged on the periodic table. Which conclusion cannot be drawn from the graph?

• The ionization energy drops significantly as you move down a group because the valence electrons are in a shell further from the nucleus.

• The ionization energy increases gradually as you move right across a period because the valence electrons are in a shell further from the nucleus.

• The ionization energy increases gradually as you move right across a period because you are adding more protons.

• The ionization energy increases when the valence electrons are more attracted to the nucleus.

Which of the following is true for alkaline earth metals as their atomic number increases?

• The atomic radius decreases.
• Ionization energy decreases.
• The number of valence electrons increases.
• The Coulombic attraction increases.

Which of the following sequences corresponds to a correct trend in ionization energy?

• Cl > S > P > Al
• Sr > Ca > Mg > Be
• Rb > K > Na > Li
• Rb > Sr > I > Xe

After the atom is ionised, it then requires more energy to remove a second electron because the second electron is in alower energy level.

• True
• False
• Not sure

What is ionization energy?

• Energy needed to destroy an atom
• Energy required to remove an electron
• Energy needed to split an electron
• Energy required to add an electron

As you look down a group, ionization energy and electronegativity

• increases

• decreases