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Fill in the blank: Unlike solids, both liquids and gases are classified as __________ because their particles are not in fixed positions and can flow.
True or False: It is impossible for the mass number () of a stable atom to be smaller than its atomic number ().
According to the particle model, when a gas is compressed using a syringe, what specifically is changing at the molecular level?
In the Bohr model of the atom, electrons move around the nucleus in fixed paths known as __________ or shells.
Which statement correctly distinguishes between boiling and evaporation?
Practice MYP MYP Chemistry Topic Matter with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for Matter and mirrors Paper 1, 2 style where relevant.
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