atoms are:, the largest part of matter., types of metals., tiny partículas that make up all matter., The center of am atom, madre of protons and neutrons, si called the:, electron cloud, nucleus, shell, A molecule is formed when:, atoms disappear, a liquid freezes, two or more atoms join together, Which of the following is a simple molecule, water ( H2O), oxigen (O2), carbon dioxide (CO2), The atomic number tells you the number of:, neutrons, electrons only, protons, Which of the following is a physical property?, rusting, mass, cooking, Which material is opaque?, clear glass, a wooden door, wax paper, Metals that can be stretched into wires show:, ductility, elasticity, hardness

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