Unit 8 Review

What is ionization energy?

• The energy required to power up a warp drive.

• The energy required to make an ion.

• The energy required to remove an electron form an atom.

• The energy required to add an electron to an atom.

What is a valence electron?

• An electron that is destroyed in a chemical reaction.

• An electron closest to the nucleus.

• Any electron in the highest energy level of an atom.

• An electron in an orbital.

It is 'easier' to remove an electron from potassium (K) than it is from sodium (Na).

Which statement explains why?

• A potassium (K) atom is smaller than a sodium atom (Na)

• Potassium (K) atoms are the same size as sodium (Na) atoms

• Sodium's (Na) nucleus has a stronger hold on its valence electrons than does

  potassium (K)

• Potassium's (K) nucleus has a stronger hold on its valence electrons than does (Na)

Choose all answers that accurately describe

the valence electrons in Selenium (Se)

• Selenium (Se) has one valence electron.

• Selenium's (Se) valence electrons are in the n

  = 4 energy level

• Selenium (Se) has 6 valence electrons.

• Selenium (Se) has 4 valence electrons

How is electron affinity described?

• The likelihood of an atom to gain an electron.

• The ability for an atom to lose an electron.

• The number of protons in the nucleus of an atom.

• How large or small an atom is.

Which one of the following would result in the greatest electron affinity?

• A small atom, with a strong positive force in the nucleus.

• A large atom, with a weak positive force in the nucleus.

• A large atom, with a strong positive force in the nucleus.

• A small atom, with a weak positive force in the nucleus.

As you move from the top of a column (group) to the bottom of the column (group)

what happens to electron affinity?

• Need more information needed to answer this question

• electron affinity stays the same

• electron affinity increases

• electron affinity decreases

Which of the following are true for the element Fluorine (F)

• fluorine (F) generally gives up an electron and forms a cation

• fluorine (F) generally gains an electron and becomes an anion

• fluorine (F) has a high electron affinity

• fluorine (F) has a high ionization energy

• fluorine (F) has a low ionization energy

When barium (Ba) forms an ion, choose all possible scenarios that are correct.

• Due to the fact that Barium (Ba) is a relatively small atom, an electron is added

• Due to the fact that Barium (Ba) is a relatively large atom, 2 electrons are removed

• Barium (Ba) has a low ionization energy making it easy to remove its valence e

• Barium (Ba) has a high ionization energy making it difficult to remove its valence e

• Barium (Ba) will form an anion

Given the graph and equation of best fit (trendline a.k.a. curvefit) what is the slope for this line?

• 2

• 1.68

• 0.23

• 0.998