The indivisibility of the atom ( postulate B ) is proved wrong. An atom can be subdivided into electrons, protons and neutrons.
Atoms of the same element can vary in their masses and densities ( in postulate D ). The atoms of the same element with different masses are called isotopes.
Answer:
Postulates that still hold true today are: A ) Atoms of different elements can combine physically and chemically. and C ) Chemical reactions occur when atoms are joined or separated.
The rate of evaporation is equal to rate of condensation in equilibrium......It means the evaporation rate becomes constant.....And thus equilibrium attained !!!
Answer:
false false false false false
Answer:
Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in water. It reacts with all metals except gold and platinum, forming sulfides; it also forms compounds with several nonmetallic elements.
Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Elemental sulfur is a bright yellow, crystalline solid at room temperature.
Explain what? Im happy to help!