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