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