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