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