Periodic Table Practice Name______

“INK” Chapter 2.4 Period______Date______

A bizarre research report describes a previously unknown class of compounds made by a new

principle of chemical synthesis. One newly discovered compound, which contains the elements

indium (In) and potassium (K), can be used in ballpoint pens. Remarkably, its formula is InK. The

formula of the other compounds were not revealed, but can be derived from their chemical composition.

Can you write the formulas?

1. A pen to hold ink can be made of a compound containing one part bismuth

and one part carbon. ______

2. A compound with equal parts tin, oxygen and boron does not mix with

other substances. ______

3. A very absorbent material of equal parts phosphorus, oxygen,nitrogen, sulfur

and germanium has multiple uses. ______

4. A mineral of the three elements aluminum, sulfur and phosphorus is found in

a major mountain range. ______

5. The compound containing sulfur, phosphorus and lithium forms a structure

that enables you to smooch. ______

6. This chemical, sometimes found in rabbit’s feet contains one part carbon, one

part potassium, and one part lutecium. ______

7. A compound that’s helpful when studying for a test contains one part

americium and one part chromium. ______

8. Carbon, iodine, potassium and bromine are found in this material that is used

to build houses. ______

9. Discovered in automobiles, this compound contains one part sulfur and one

part gallium. ______

10. A substance made of one part astatine, one part boron, and one part oxygen,

floats on water. ______

11. This compound – one part neodymium, one part aluminum, and one part

molybdenum – makes a very nutty substance. ______

12. A compound of one part iron, one part nickel, and one part potassium can

cut through other substances. ______

13. Nitrogen, rhenium, carbon, tungsten and hydrogen in equal parts, can form a

useful tool. ______

14. Equal parts of calcium, oxygen, lanthanum, carbon and cobalt will make a

tasty beverage. ______

15. A substance that’s one part radon, one part cobalt, and one part yttrium,

is similar to many of these examples. ______

16. Equal parts of iodine, calcium, erbium and americium was a destination for

many immigrants. ______

17. Potassium, argon and boron are the components for the noise a dog makes. ______

18. A substance that is one part tungsten, one part nitrogen, one part oxygen and

one part sulfur is great fun in the winter. ______

19. This substance is one part neon, yttrium and molybdenum and can come in

handy at the mall. ______

20. Unfortunately, none of these examples may be this substance, except that

they have helped you practice the element symbols! It is made from equal

parts of titanium, aluminum, praseodymium, carbon and actinium. ______