prep 1 October Revision 2025

The outer energy level of metals contains less than ___ electrons, while non-metals contain more than ___ electrons.

• 4, 4

• 3, 3

• 2, 2

• 5, 5

Element (A) has two electrons in the outer energy level (M), so its type is ___. Element (B) has six electrons in outer energy level (L), so its type is ___.

• metal, non-metal

• non-metal, metal

• metal, metalloid

• metalloid, non-metal

All metals are solid substances except ___ is liquid.

• Mercury (Hg)

• Iron (Fe)

• Copper (Cu)

• Aluminum (Al)

All non-metals are bad conductors of electricity except ___ is a good conductor of electricity.

• Carbon

• Sulphur

• Phosphorus

• Chlorine

Non-metals are solid materials such as ___ and ___, gaseous materials such as ___ and ___, but the only liquid is ___

• Sulfur, Carbon, Oxygen, Nitrogen (or Chlorine), Bromine (Br2)

• Iron, Copper, Hydrogen, Helium, Mercury

• Phosphorus, Silicon, Argon, Neon, Iodine

• Magnesium, Zinc, Fluorine, Krypton, Gallium

The period starts with elements of group ___ and ends with the elements of group ___.

• 1A, 0

• 2A, 7A

• 3A, 8A

• 1B, 0

The second period begins with the elements of group ___ and ends with the elements of group ___.

• 1A, 0

• 2A, 7A

• 1B, 8A

• 3A, 0

The modern periodic table consists of ___ periods and ___ groups.

• 7, 18

• 6, 12

• 8, 20

• 5, 15

The modern periodic table consists of ___ blocks.

• 4

• 2

• 5

• 6

The elements of block S are located to the ___ in the table and consist of ___ groups.

• left, 2

• right, 6

• center, 10

• bottom, 14