Across
- 7. I am the only element in group 17 that is a liquid
- 8. I am a halogen with a mass of 129.934
- 9. I am part of the Nitrogen family and I have 16 neutrons
- 10. I have 2 electrons in my first shell, 8 electrons in my second shell and 6 electrons in my third shell
- 11. This element is necessary for our survival
- 13. I have 26 protons
- 14. I am a transition metal with 25 electrons
- 16. I am in the Carbon family and in period 5
- 17. I am a transition metal with 30 electrons
- 19. I am a noble gas with 2 electrons
- 21. My atomic number is 47 and I am used in making film
- 22. I am a silvery white metal used in making salt
- 23. I am in the Carbon family and mistaken for a pencil
Down
- 1. I am a gas with mass number 19
- 2. I am the head of the Carbon family and the basis of life
- 3. I am a metal with 28 electrons
- 4. I am in group 15 and make up 78% of the air
- 5. I am the first element in the 4th period and used to make fertilizer
- 6. My atomic mass is 35.453
- 12. I am a noble gas with 10 protons and 10 neutrons
- 15. My atomic number is 79
- 18. I have 20 neutrons and am found in your teeth and bones
- 19. I am not really an alkali metal but I'm in the same group because I behave like them.
- 20. I am a metal that is liquid at room temperature