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