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