Practice Problem 2: Ionization Energy Of Na Vs. Mg (6.2)

Practise this section

8 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is ionization energy?
Show hintHide hint
Think about the energy needed to change an atom into an ion.
Question 2.
Which element has a higher first ionization energy: Na or Mg?
Show hintHide hint
Consider the number of electrons in their outer shells.
3Question 3.
What defines ionization energy?
- Energy to form ions
- Energy to remove an electron
- Energy to add an electron
Show hintHide hint
Think about what happens when an atom loses an electron.
4Question 4.
True or False: Magnesium has a higher first ionization energy than sodium.
- True
- False
Show hintHide hint
Consider their electron configurations.
Question 5.
If the energy needed to remove the first electron from sodium is 495.8 kJ/mol, how much energy would be needed to remove the second electron after the first has been removed, considering its new Z_eff?
Show hintHide hint
Think about the impact of effective nuclear charge on ionization energy.
Question 6.
Discuss how the trend in ionization energy can be used to predict an element's reactivity.
Show hintHide hint
Consider the relationship between ionization energy and metallic character.

4 more questions in this section. Enroll free to practise them all.