A) 60 B) 50 C) 23 D) 51
A) 7 B) 3 C) 17 D) 1
A) 5 B) 103 C) 45 D) 9
A) 3 B) 4 C) 15 D) 33
A) Alkaline Earth Metals B) Noble Gases C) Halogens D) Alkaline Metals
A) 7 B) 14.007 C) 14 D) 2
A) 56 B) 6 C) 137 D) 2
A) 6 B) 2 C) 1 D) 7
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) 6 B) 96 C) 5 D) 42
A) 4 B) 3 C) 7 D) 2
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Bohr B) Rutherford C) Thomson D) Dalton
A) Dalton B) Thomson C) Rutherford D) Bohr
A) Thomson B) Bohr C) Dalton D) Rutherford
A) Dalton, Rutherford, Thomson, Bohr B) Dalton, Thomson, Bohr, Rutherford C) Dalton, Thomson, Rutherford, Bohr D) Bohr, Rutherford, Dalton, Thomson
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) chemical property B) chemical change C) physical property D) physical change
A) protons and orbits B) neutrons and electrons C) protons and electrons D) protons and neutrons
A) Phosphorus and Silicon B) Mercury and Thallium C) Argon and Krypton D) Carbon and Boron
A) Dalton's Model B) Electron Cloud C) Bohr's Model D) Rutherford's Model E) Thomson's Model
A) the atom is mostly empty space B) atoms are tiny solid spheres C) the atom is a positively charged sphere with electrons embedded in it D) electrons orbit totally randomly around the nucleus
A) period B) region C) nucleus D) group
A) Magnesium B) Chlorine C) Beryllium D) Lithium
A) Group Number B) State of Matter C) Period Number D) Number of Neutrons
A) group number B) number of neutrons C) period number D) number of protons
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) Period Number B) Number of Neutrons C) State of Matter D) Group Number
A) Nitrogen B) Carbon C) Francium D) Manganese
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. |