Chemistry of unit 1

• Chemistry
• Further Education (Key Stage 5)

Chemistry of unit 1

Orbitals and blocks 

Which orbitals have a quantum number l=1?

1. D orbitals
2. F orbitals
3. S orbitals
4. P orbitals

Which orbitals have a maximum of 10 electrons?

1. S orbitals
2. F orbitals
3. P orbitals
4. D orbitals

Which orbitals can hold a maximum of 2 electrons?

1. D orbitals
2. F orbitals
3. S orbitals
4. P orbitals

Which orbitals have a cloverleaf shape?

1. P orbitals
2. S orbitals
3. F orbitals
4. D orbitals

Which orbitals have a dumbbell shape?

1. S orbitals
2. F orbitals
3. P orbitals
4. D orbitals

Which element is found in the first group of the s block?

1. Lithium
2. Helium
3. Sodium
4. Beryllium

What is the general valence shell configuration of elements in the s block?

1. ns2-3
2. ns1-2
3. np6
4. ns1-3

Which element in the s block is an alkaline earth metal?

1. Magnesium
2. Strontium
3. Calcium
4. Potassium

Which s block element is used in fireworks to produce a crimson color?

1. Calcium
2. Rubidium
3. Strontium
4. Barium

Which s block element is used in making nuclear reactor control rods?

1. Rubidium
2. Potassium
3. Lithium
4. Sodium

Give one use of silver that relies on the low reactivity of the metal.

Explain, in terms of atomic structure, why calcium is less reactive than sodium.

Identify the correct arrangement of electrons in the 3d sub-shell of a
manganese atom.Explain your answer.