Across
- 3. A metal with 28 electrons.
- 4. The element in the 14th group and the 5th period.
- 6. A silvery white metal, located in the 3rd period, that is used to make salt.
- 8. A metal with 30 electrons that is useful in making paint.
- 10. A metal that has 25 electrons.
- 13. An element in the 15th group with 16 neutrons.
- 15. Element with only 1 electron.
- 16. A gas with a mass number of 19.
- 19. An element in the 14th group that is known as the "basis of life".
- 20. The element that makes up 78% of the air and is found in the 15th group.
- 22. An element in the 13th group that is the most abundant metal in the Earth's crust.
- 24. An element with an atomic number of 47 that is used to make film for cameras.
- 25. An element in the 14th group that is often mistaken for the end of your pencil.
Down
- 1. Element with 26 protons.
- 2. A gas that has only 2 electrons.
- 5. An element with 20 neutrons that is found in your teeth and bones.
- 6. The 2nd most abundant element in the Earth's crust, which has a mass number of 28.09.
- 7. An element in the 2nd group that is used to make fireworks and medicines.
- 9. A metal that is liquid at room temperature, which is used in thermometers.
- 11. An element with a mass number of 35.45.
- 12. The first element in the 4th period, which is used to make fertilizer.
- 14. A gas with 8 protons and 8 neutrons.
- 17. The only element in the 17th group that is a liquid at room temperature.
- 18. The element that has 2 electrons in the first energy level, 8 in the second energy level, and 6 in the third energy level.
- 21. An element with an atomic number of 79.
- 23. An element in the 17th group, with an atomic number of 53.
