Elemental Shapes

Let's start with an easy one. Match the basic shapes in the
left-hand column with their names in the right-hand column.

1.   A. circle
2. B. rectangle
3. C. rhombus
4. D. square
5. E. triangle
6. F. Taj Mahal

I won't reveal the solution. (Do your own research if necessary.)
Now that you've worked the warmup puzzle, here's the main puzzle:

See if you can match these irregular shapes in the left-hand column with the
chemical element names in the right-hand column, and give the criterion used.

1.   A. manganese
2. B. nihonium
3. C. mendelevium
4. D. protactinium
5. E. meitnerium
6. F. neodymium

solution