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