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