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