The activity sheet will serve as the “Evaluate” component of each 5-E lesson plan. For this lesson you will need the 5 cards for each element from the left side of each sheet.
Both this lesson and Lesson 4.3—The Periodic Table and Energy Level Models both use the atom description cards. You will also need the card in the upper right corner. Tape each of the 20 atom name cards to a spot in the room where students can place the cards that match that atom nearby.
After the dating each element should fill in the ‘rate your dates’ section where they think about which element they are most compatible with and why.
This contains all the worksheets for the lesson plus an example which you can use to show the students how to fill them in.
If you need evidence, take a look at how elements behave at a party: Googling some ideas for a valentine’s day chemistry lesson, I came across a really great idea from a wiki set up by a school in the USA and have decided to use the idea and adapt it slightly so it addresses what students need to know about atomic structure and ionic bonding for GCSE. Assign each student an element, whose role they take during the lesson.
I would stick to group 1, 2, 6 and 7 elements and avoid high atomic numbers (as the students will be drawing the structures).
You would look at the periodic table to find an atom that you could add 5 to its number of protons that would give you a sum close to the atomic mass given for that element.
The answer is beryllium (Be), which has 4 protons and an atomic mass of 9.01.