They were the first Chemist with roots in Egypt and China, Greeks, Alchemist, Egyptians, Asians, Civilization who made Paper, ceramic, ink and gunpowder, Alchemist, Egyptians, China, Greeks, Civilization that made Make up, Jewelry and prepared bodies after death (embalming), China, Egyptians, Alchemist, Russians, He is the one who talked about the composition of matter, Aristotle, Lavoisier, Thales of Miletus, Democritus, He is the one who said that Matter was made of tiny particles called atoms, Aristotle, Thales of Miletus, Paracelsus, Democritus, He established the foundation of modern Chemistry and refuted the phlogiston theory, Lavoisier, Mendeleev, Rutherford, Bohr, It is a (an) example of a pure substance except, Copper, Air, Water, Glucose, It is an example of a heterogeneous mixture, Smog, Saltwater, coffee, Helium, Have a fixed or definite composition, elements, pure substances, Compounds, All are correct, Contain two or more different substances that are physically mixed but not chemically combined., Pure substances, compounds, Mixtures, Elements, Is composed of one type of atom, cannot be separated into simpler substances by physical or chemical means., mixtures, compounds, element, colloids, Is composed of two elements and always in the same proportion. For example: water, solution, mixture, element, compound, Paint, ice cream, milk, jellies and mayonnaise are examples of, solutions, suspensions, colloids, homogeneous mixtures, Melting, boiling and chopping are examples of, Physical changes, states of matter, chemical changes, chemical reactions, Combustion, Rusting, Digestion and Rotting are examples of, Chemical properties, Physical Change, Chemical Change, Physical properties, It is the resistance that a body present to change the state of rest or movement, Inertia, Porosity, Impenetrability, Density, It is the ability to be deformed under pressure, like hammering a metal to form a flat sheet, Viscosity, Ductility, Malleability, Hardness, It is the resistance of solid bodies to deformation, Malleability, Hardness, viscosity, ductility, It ilustrates the change in temperature and changes in state as heat is added, cooling curve, heating curve, boiling curve, melting curve, It is everything that is present in life and that surrounds living beings. It is the fundamental constituent of the body, cell, atom, The universe is made up of ______ which is made up of atoms, Cell, matter, atom, It is the smallest unit of matter that retains all the chemical properties of an element, atom, neutrons, electrons, cells, They were the first to refer to the concept of the atom in ancient Greece, around the 15th BC, Leucippus and Democritus, Dalton and Rutherford, Leucippus and Dalton, He claimed that every substance was formed by combining 4 elements: air, earth, fire and water, Democritus, Aristotle, Plato, Dalton, He presented the atomic theory, in which he proposed that atoms were indestructible particles, small, sphere-shaped, Dalton, Thomson, Rutherford, Lavoisier, This marked the era of modern chemistry, Schrodinger´s work, Dalton´s work, Radioactivity, He is the father of modern chemistry and allowed the formulation of the law of conservation of matter, Lavoisier, Dalton, Thomson, Democritus, He established the law of definite proportions (elements combine, form compounds in definite proportions)., Ernest Rutherford, Henri Becquerel, J.J Thomson, Joseph Louis Proust, A third law was postulated by _____ which states that the elements can be combined in more than one proportion., Dalton (Law of multiple proportions), Dalton (Law of Definite proportions), He is the father of modern Chemistry. He demonstrated that a chemical reaction has the same amount of matter at the beginning and at the end., Dalton, Proust, Lavoisier, Which of the postulates of the atomic theory proposed by Dalton are now known to be incorrect?, All elements are made up of small particles called atoms, Atoms of the same element are identical, they have the same size, mass and chemical properties, the atoms of an element are neither created nor destroyed during a chemical reaction but are only rearraged, Compounds are formed by atoms of several elements, He proposed that light is composed of luminous particles called corpuscles, Isaac Newton, Einstein, Edison, Dalton, He discovered that atoms and molecules emit energy in the form of energy packets or quanta, Isaac Newton, Max Planck, Thomson, Rutherford, He discovered the neutron, Thomson, Chadwick, Rutherford, Bohr, It is the sum of protons and neutrons in the nucleus., Atomic Number, Atomic Weight, Mass number, It is represented with the letter A, Mass number, Symbol, Atomic Number, It is represented with the letter Z. It is also the number of protons in the nucleus of an atom, Atomic weight, Atomic number, Mass number, Symbol, It defines the identity of an element, Mass number, Number of electrons, Number of protons, Atomic Number, C and D are correct, He performed a series of experiments with cathode rays and discovered the electron (a particle lighter than Hydrogen), Rutherford, Dalton, Thomson, Bohr, His model looks like a pudding with raisins, Thomson, Rutherford, Dalton, Bohr, He use different experiments using rays from a radioactive source to determine the atomic structure., Dalton, Thomson, Rutherford, Becquerel, It is a phenomenon of spontaneous emission of particles and high-energy radiation in unstable atomic nuclei, Electromagnetism, Radioactivity, Quantum Theory, Electromagnetic spectrum, He discoverd a new property of matter while researching fluorescence with uranium salts, Becquerel, Lavoisier, Rutherford, Bohr, They are a flow of + particles of 2 protons and 2 neutrons. They Emanate during the decay of heavier radioactive element, Beta particles, Alpha particles, Gamma rays, Electromagnetic Spectrum, They are small and fast particles of negative electrical charge with mass. The decay of radioactive nuclei produces them, Alpha particles, Beta particles, Gamma rays, Isotopes, Similar to visible light but have much higher energy. They are packets of energy without mass or charge (photons), Isotopes, Alpha particles, Gamma rays, It is a propagation of energy in space due to vibrational perturbation., wavelength, Frequency, Wave, Amplitude, It is the distance between two adjacent ridges or valleys, Wavelength, Frequency, Amplitude, Number of wavelengths or cycles that pass through a given point every second, Frequency, Wavelength, Amplitude, This quantum number characterizes energy levels. It has positive values: 1,2,3,4,5,6,7, n, l, m, s, Quantum number of angular momentum or secondary quantum number (defines the shape of the orbital) It is = n-1, n, l, m, s, Magnetic quantum number describes the orientation of the sublevels and defines the orbitals., n, l, m, s, is the complete range of all types of electromagnetic radiation, ordered according to their wavelength or frequency., Electromagnetic waves, Visible spectrum, electromagnetic spectrum, I have no idea, Frequencies higher than visible light, except, Microwaves, X - rays, Gamma rays, Ultraviolet (UV) radiation, states that it is fundamentally impossible to know precisely both the velocity and position of a particle at the same time., Aufbau Principle, Hunds rule, Heisenberg uncertainty principle, atoms with the same number of protons but different numbers of neutrons., Ions, Isotopes, Molecules, Aluminum and Calcium, “A maximum of two electrons can occupy a single atomic orbital, but only if the electrons have opposite spins., Pauli Exclusion principle, Hunds rule, Aufbau principle

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