A) 60 B) 50 C) 51 D) 23
A) 3 B) 7 C) 17 D) 1
A) 5 B) 45 C) 9 D) 103
A) 33 B) 3 C) 4 D) 15
A) Alkaline Earth Metals B) Alkaline Metals C) Halogens D) Noble Gases
A) 2 B) 14 C) 14.007 D) 7
A) 6 B) 137 C) 2 D) 56
A) 6 B) 2 C) 7 D) 1
A) Phosphorus is a non-metal gas. B) Mercury is a solid metal. C) Tellurium is a solid metalloid. D) Chlorine is a liquid non-metal.
A) 6 B) 96 C) 42 D) 5
A) 4 B) 3 C) 7 D) 2
A) Rutherford B) Thomson C) Bohr D) Dalton
A) Thomson B) Rutherford C) Bohr D) Dalton
A) Dalton B) Rutherford C) Thomson D) Bohr
A) Bohr B) Rutherford C) Thomson D) Dalton
A) Dalton, Rutherford, Thomson, Bohr B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Thomson, Rutherford, 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) protons and neutrons B) protons and orbits C) protons and electrons D) neutrons and electrons
A) Mercury and Thallium B) Carbon and Boron C) Argon and Krypton D) Phosphorus and Silicon
A) Rutherford's Model B) Electron Cloud C) Dalton's Model D) Bohr's Model E) Thomson'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) region B) nucleus C) period D) group
A) Magnesium B) Lithium C) Chlorine D) Beryllium
A) Period Number B) State of Matter C) Group Number D) Number of Neutrons
A) number of neutrons B) period number C) group 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) Number of Neutrons C) State of Matter D) Group Number
A) Carbon B) Francium 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. |