Chem 101 Vocab

First ten elements and their symbols

1. Hydrogen - H

2. Helium - He

3. Lithium - Li

4. Beryllium - Be

5. Boron - Be

6. Carbon - C

7. Nitrogen - N

8. Oxygen - O

9. Fluorine - F

10. Neon - Ne

Second ten elements and their symbols

11. Sodium - Na

12. Magnesium - Mg

13. Aluminum - Al

14. Silicon - Si

15. Phosphorus - P

16. Sulfur - S

17. Chlorine - Cl

18. Argon - Ar

19. Potassium - K

20. Calcium - Ca

Other VIIA elements and their symbols

• Bromine - Br

• Copper - Cu

• Gold - Au

• Iron - Fe

• Lead - Pb

• Manganese - Mn

• Iodine - I

• Mercury - Hg

• Nickel - Ni

• Platinum - Pt

• Silver - Ag

• Zinc - Zn

What elements exist as diatomic molecules?

• Hydrogen - H2

• Nitrogen - N2

• Oxygen - O2

• the halogens - F2, Cl2, Br2, I2

What are the halogens?

• Highly reactive, forms salt, group 17

• F2, Cl2, Br2, I2

Strong acids

• hydrochloric acid - HCl

• hydrobromic acid - HBr

• Hydroiodic acid - HI

• Sulfuric acid - H2SO4

• Nitric acid - HNO3

• Perchloric acid - HClO4

Other 4 important molecules

• water - H2O

• ammonia - NH3

• carbon dioxide - CO2

• methane - CH4