Which substances contain one or more shared pairs of electrons? 1 argon 2 methane 3 iron(III) oxide 4 chlorine

Chemistry

IGCSE&ALevel

CAIE

Exam No：0620_s25_qp_11 Year：2025 Question No：7

Answer:

8.1.1. Describe the Periodic Table as an arrangement of elements in periods and groups and in order of increasing proton number / atomic number

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