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6. What is the Oxidation number of combined fluorine?
7. Reduction is....
- Gain of electrons
- When an element is both oxidised and reduced
- Gain of protons
- Loss of neutrons
- Loss of electrons
8. What is the 3D shape of an S orbital?
- Tetrahedral
- Irregular
- Dumbell
- Spherical
- Retangular based pyramid
9. Ionic bonding occurs between...
- Non metals only
- Metals only
- A metal and a non metal
- Gaseous elements only
- Group 2 elements only
10. What is a covalent bond?
- A shared pair of protons
- Ions surrounded by delocalised ions
- Electrostatic attraction between oppositley charged ions
- A shared pair of electrons
- A single electron
11. What is the bond angle of a trigonal planar?
12. What are the intermolecular forces between I2 molecules?
- Ionic
- Van der Waals
- Metallic
- Permanent dipole
- Hydrogen bonds
13. As you go across a period atomic radii increases.
14. What colour does Cl2 go in water?
- Pale-green
- White
- Orange
- Blue
- Brown
15. AgI is soluable in concentrated aqueous ammionia
16. Adding silver ions to bromide ions forms....
- No precipitate
- A white precipitate
- A yellow precipitate
- A cream precipitate
- Orange precipitate
17. Which element is NOT a halide?
- Fluorine
- Bromine
- Astatine
- Leucine
- Chlorine