IGCSE (year 1) placement test (questions)

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คำแนะนำของผู้เขียน

Please write your answers on the answer sheet.

สำรวจแผ่นงาน

Valence Electron

Physical Science - Science

Read the provided reading materials before answering the worksheet.

The Valence Shell

Physical Science - Science

Answer the worksheet.

Valence Electrons

Physical Science - Science

Answer the worksheet

ADM AUG.17, 2026

Physical Science - Science

Complete the table with the correct value of atomic number,  proton, electron, neutron and atomic mass.