OCR GCSE CHEMISTRY FULL PAPER MERGED WITH MARKING SCHEME
CANDIDATES NAME
STUDENTS NUMBER
DATE
SECTIONS MARKS
A 50
B 50
TOTAL 100
🧪 Atomic Structure & Periodic Table
1. State the relative charges and masses of protons, neutrons, and electrons.
1
,2. Draw the electronic configuration of sodium (Na).
3. Why are noble gases chemically unreactive?
4. Explain why chlorine is more reactive than iodine.
2
, 5. Describe how Mendeleev arranged the periodic table.
⚗️
Bonding & Structure
6. Draw a dot-and-cross diagram for water (H₂O).
7. Explain why ionic compounds have high melting points.
3
CANDIDATES NAME
STUDENTS NUMBER
DATE
SECTIONS MARKS
A 50
B 50
TOTAL 100
🧪 Atomic Structure & Periodic Table
1. State the relative charges and masses of protons, neutrons, and electrons.
1
,2. Draw the electronic configuration of sodium (Na).
3. Why are noble gases chemically unreactive?
4. Explain why chlorine is more reactive than iodine.
2
, 5. Describe how Mendeleev arranged the periodic table.
⚗️
Bonding & Structure
6. Draw a dot-and-cross diagram for water (H₂O).
7. Explain why ionic compounds have high melting points.
3
