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