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