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