A) 50 B) 60 C) 51 D) 23
A) 3 B) 7 C) 17 D) 1
A) 103 B) 45 C) 9 D) 5
A) 3 B) 15 C) 33 D) 4
A) Alkaline Metals B) Noble Gases C) Halogens D) Alkaline Earth Metals
A) 7 B) 14.007 C) 2 D) 14
A) 2 B) 6 C) 56 D) 137
A) 1 B) 2 C) 6 D) 7
A) Phosphorus is a non-metal gas. B) Mercury is a solid metal. C) Tellurium is a solid metalloid. D) Chlorine is a liquid non-metal.
A) 6 B) 5 C) 42 D) 96
A) 2 B) 3 C) 4 D) 7
A) Thomson B) Dalton C) Rutherford D) Bohr
A) Dalton B) Bohr C) Rutherford D) Thomson
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Thomson B) Rutherford C) Bohr D) Dalton
A) Dalton, Thomson, Bohr, Rutherford B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Rutherford, Bohr D) Dalton, Rutherford, Thomson, Bohr
A) proton = negative, electron = positive, neutron = no charge B) proton = positive, electron = negative, neutron = uncharged C) proton = positive, electron = neutral, neutron = negative D) proton = positive, neutron = negative, electron = no charge
A) physical change B) chemical property C) physical property D) chemical change
A) protons and orbits B) protons and electrons C) protons and neutrons D) neutrons and electrons
A) Phosphorus and Silicon B) Argon and Krypton C) Mercury and Thallium D) Carbon and Boron
A) Rutherford's Model B) Thomson's Model C) Bohr's Model D) Electron Cloud E) Dalton's Model
A) atoms are tiny solid spheres B) the atom is a positively charged sphere with electrons embedded in it C) electrons orbit totally randomly around the nucleus D) the atom is mostly empty space
A) region B) group C) nucleus D) period
A) Beryllium B) Chlorine C) Lithium D) Magnesium
A) Period Number B) Group Number C) State of Matter D) Number of Neutrons
A) group number B) period number C) number of neutrons D) number of protons
A) the mass number minus the atomic number B) the same as the number of energy levels C) greater than the mass number D) the same as the number of electrons
A) Number of Neutrons B) Group Number C) Period Number D) State of Matter
A) Manganese B) Carbon C) Francium D) Nitrogen
A) Yes, some Carbon atoms have 6 protons, some have 7 protons. B) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. |