The elemental symbol for Gold is

• Au

• Ag

• Gd

• Hg

The atomic number of an element

• = number of electrons + number of neutrons

• = number of electrons + number of protons

• = number of electrons = number of protons

• = number of protons + number of neutrons

Fluorine has

• 10 neutrons

• 10 electrons

• 9 neutrons

• none of the above

Alkali metals are found in

• Group 1

• Group 2

• Group 17

• Group 18

Alkaline-earth metals are found in

• Group 1

• Group 2

• Group 17

• Group 18

Halogens are found in

• Group 1

• Group 2

• Group 17

• Group 18

Noble gases are found in

• Group 1

• Group 2

• Group 17

• Group 18

The following are all metals

• Lithium, Magnesium, Boron, Silicon and Phosphorus

• Lithium, Magnesium, Boron, Mercury and Phosphorus

• Hydrogen, Magnesium, Boron, Silicon and Phosphorus

• None of the above

The following are liquids at room temperature

• Bromine, Chlorine, Iodine and Mercury

• Bromine, Fluorine and Mercury

• Bromine, Iodine and Polonium

• Bromine and Mercury

A non-metal liquid at room temperature is

• Mercury

• Caesium

• Gallium

• Bromine